diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index f8166e5..d3cfa99 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -510,7 +510,7 @@
     /** @hide */
     @UnsupportedAppUsage
     public TelephonyManager(Context context) {
-      this(context, SubscriptionManager.DEFAULT_SUBSCRIPTION_ID);
+        this(context, SubscriptionManager.DEFAULT_SUBSCRIPTION_ID);
     }
 
     /** @hide */
@@ -2126,10 +2126,14 @@
      * the IMEI/SV for GSM phones. Return null if the software version is
      * not available.
      * <p>
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY}.
      */
     @RequiresPermission(anyOf = {
             android.Manifest.permission.READ_PHONE_STATE,
             android.Manifest.permission.READ_BASIC_PHONE_STATE})
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY)
     @Nullable
     public String getDeviceSoftwareVersion() {
         return getDeviceSoftwareVersion(getSlotIndex());
@@ -2144,10 +2148,13 @@
      *
      * @param slotIndex of which deviceID is returned
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY}.
      * @hide
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY)
     @Nullable
     public String getDeviceSoftwareVersion(int slotIndex) {
         ITelephony telephony = getITelephony();
@@ -2274,6 +2281,9 @@
      *
      * See {@link #getImei(int)} for details on the required permissions and behavior
      * when the caller does not hold sufficient permissions.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_GSM}.
      */
     @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
@@ -2316,6 +2326,9 @@
      * </ul>
      *
      * @param slotIndex of which IMEI is returned
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_GSM}.
      */
     @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
@@ -2336,6 +2349,9 @@
     /**
      * Returns the Type Allocation Code from the IMEI. Return null if Type Allocation Code is not
      * available.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_GSM}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_GSM)
     @Nullable
@@ -2348,6 +2364,9 @@
      * available.
      *
      * @param slotIndex of which Type Allocation Code is returned
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_GSM}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_GSM)
     @Nullable
@@ -2393,6 +2412,9 @@
      *     the READ_PHONE_STATE permission, or if the calling app is targeting API level 29 or
      *     higher, then a SecurityException is thrown.</li>
      * </ul>
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CDMA}.
      */
     @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
@@ -2432,6 +2454,9 @@
      * </ul>
      *
      * @param slotIndex of which MEID is returned
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CDMA}.
      */
     @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
@@ -2458,6 +2483,9 @@
     /**
      * Returns the Manufacturer Code from the MEID. Return null if Manufacturer Code is not
      * available.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CDMA}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CDMA)
     @Nullable
@@ -2470,6 +2498,9 @@
      * available.
      *
      * @param slotIndex of which Type Allocation Code is returned
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CDMA}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CDMA)
     @Nullable
@@ -2514,6 +2545,9 @@
      *     the READ_PHONE_STATE permission, or if the calling app is targeting API level 29 or
      *     higher, then a SecurityException is thrown.</li>
      * </ul>
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
@@ -2549,10 +2583,14 @@
      *<p>
      * @return Current location of the device or null if not available.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
+     *
      * @deprecated use {@link #getAllCellInfo} instead, which returns a superset of this API.
      */
     @Deprecated
     @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
     public CellLocation getCellLocation() {
         try {
             ITelephony telephony = getITelephony();
@@ -2582,12 +2620,15 @@
      *
      * @return List of NeighboringCellInfo or null if info unavailable.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @removed
      * @deprecated Use {@link #getAllCellInfo} which returns a superset of the information
      *             from NeighboringCellInfo, including LTE cell information.
      */
     @Deprecated
     @RequiresPermission(android.Manifest.permission.ACCESS_COARSE_LOCATION)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
     public List<NeighboringCellInfo> getNeighboringCellInfo() {
         try {
             ITelephony telephony = getITelephony();
@@ -2634,9 +2675,12 @@
      * @see #PHONE_TYPE_CDMA
      * @see #PHONE_TYPE_SIP
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY}.
      * {@hide}
      */
     @SystemApi
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY)
     public int getCurrentPhoneType() {
         return getCurrentPhoneType(getSubId());
     }
@@ -2649,9 +2693,13 @@
      * @see #PHONE_TYPE_CDMA
      *
      * @param subId for which phone type is returned
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY}.
      * @hide
      */
     @SystemApi
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY)
     public int getCurrentPhoneType(int subId) {
         int phoneId;
         if (subId == SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
@@ -2698,7 +2746,11 @@
      * @see #PHONE_TYPE_GSM
      * @see #PHONE_TYPE_CDMA
      * @see #PHONE_TYPE_SIP
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY}.
      */
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY)
     public int getPhoneType() {
         if (!isVoiceCapable()) {
             return PHONE_TYPE_NONE;
@@ -2898,6 +2950,9 @@
      * @see CarrierConfigManager#getConfigForSubId(int)
      * @see #createForSubscriptionId(int)
      * @see #createForPhoneAccountHandle(PhoneAccountHandle)
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @WorkerThread
@@ -2944,6 +2999,9 @@
      * <p>
      * @return the lowercase 2 character ISO-3166-1 alpha-2 country code, or empty string if not
      * available.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
     public String getNetworkCountryIso() {
@@ -2966,6 +3024,8 @@
      * available.
      *
      * @throws IllegalArgumentException when the slotIndex is invalid.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      *
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
@@ -3094,9 +3154,13 @@
      *
      * @deprecated use {@link #getDataNetworkType()}
      * @return the NETWORK_TYPE_xxxx for current data connection.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @Deprecated
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
     public @NetworkType int getNetworkType() {
         return getNetworkType(getSubId(SubscriptionManager.getActiveDataSubscriptionId()));
     }
@@ -3185,12 +3249,15 @@
      * @see #NETWORK_TYPE_EHRPD
      * @see #NETWORK_TYPE_HSPAP
      * @see #NETWORK_TYPE_NR
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(anyOf = {
             android.Manifest.permission.READ_PHONE_STATE,
             android.Manifest.permission.READ_BASIC_PHONE_STATE})
-    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
     public @NetworkType int getDataNetworkType() {
         return getDataNetworkType(getSubId(SubscriptionManager.getActiveDataSubscriptionId()));
     }
@@ -3231,6 +3298,9 @@
      * or {@link android.Manifest.permission#READ_BASIC_PHONE_STATE
      * READ_BASIC_PHONE_STATE} or that the calling app has carrier privileges
      * (see {@link #hasCarrierPrivileges}).
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(anyOf = {
@@ -3583,6 +3653,9 @@
      * of whether an active SIM profile is present or not so this API would always return true.
      *
      * @return true if a ICC card is present.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public boolean hasIccCard() {
@@ -3626,6 +3699,9 @@
      * @see #SIM_STATE_PERM_DISABLED
      * @see #SIM_STATE_CARD_IO_ERROR
      * @see #SIM_STATE_CARD_RESTRICTED
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public @SimState int getSimState() {
@@ -3667,6 +3743,8 @@
      * @see #SIM_STATE_CARD_RESTRICTED
      * @see #SIM_STATE_PRESENT
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -3687,11 +3765,14 @@
      * @see #SIM_STATE_CARD_RESTRICTED
      * @see #SIM_STATE_PRESENT
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      * @deprecated instead use {@link #getSimCardState(int, int)}
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     @Deprecated
     public @SimState int getSimCardState(int physicalSlotIndex) {
         int activePort = getFirstActivePortIndex(physicalSlotIndex);
@@ -3713,6 +3794,8 @@
      * @see #SIM_STATE_CARD_RESTRICTED
      * @see #SIM_STATE_PRESENT
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -3771,6 +3854,8 @@
      * @see #SIM_STATE_PERM_DISABLED
      * @see #SIM_STATE_LOADED
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -3794,11 +3879,14 @@
      * @see #SIM_STATE_PERM_DISABLED
      * @see #SIM_STATE_LOADED
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      * @deprecated instead use {@link #getSimApplicationState(int, int)}
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     @Deprecated
     public @SimState int getSimApplicationState(int physicalSlotIndex) {
         int activePort = getFirstActivePortIndex(physicalSlotIndex);
@@ -3822,6 +3910,8 @@
      * @see #SIM_STATE_PERM_DISABLED
      * @see #SIM_STATE_LOADED
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -3862,6 +3952,9 @@
      *
      * @param appType the uicc app type like {@link APPTYPE_CSIM}
      * @return true if the specified type of application in UICC CARD or false if no uicc or error.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -3894,6 +3987,9 @@
      * @see #SIM_STATE_PERM_DISABLED
      * @see #SIM_STATE_CARD_IO_ERROR
      * @see #SIM_STATE_CARD_RESTRICTED
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public @SimState int getSimState(int slotIndex) {
@@ -4091,6 +4187,9 @@
      *     the READ_PHONE_STATE permission, or if the calling app is targeting API level 29 or
      *     higher, then a SecurityException is thrown.</li>
      * </ul>
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
@@ -4158,6 +4257,9 @@
      *
      * @return {@code true} if 3GPP and 3GPP2 radio technologies can be supported at the same time
      *         {@code false} if not supported or unknown
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @SystemApi
@@ -4205,6 +4307,9 @@
      * through a factory reset.
      *
      * @return card ID of the default eUICC card, if loaded.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_EUICC}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_EUICC)
     public int getCardIdForDefaultEuicc() {
@@ -4238,6 +4343,9 @@
      * @return a list of UiccCardInfo objects, representing information on the currently inserted
      * UICCs and eUICCs. Each UiccCardInfo in the list will have private information filtered out if
      * the caller does not have adequate permissions for that card.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
@@ -4262,6 +4370,8 @@
      *
      * @return UiccSlotInfo array.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -4305,6 +4415,9 @@
      * @param physicalSlots The content of the array represents the physical slot index. The array
      *        size should be same as {@link #getUiccSlotsInfo()}.
      * @return boolean Return true if the switch succeeds, false if the switch fails.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      * @deprecated {@link #setSimSlotMapping(Collection, Executor, Consumer)}
      */
@@ -4314,6 +4427,7 @@
     @SystemApi
     @Deprecated
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public boolean switchSlots(int[] physicalSlots) {
         try {
             ITelephony telephony = getITelephony();
@@ -4406,6 +4520,8 @@
      * @throws IllegalArgumentException if the caller passes in an invalid collection of
      *         UiccSlotMapping like duplicate data, etc
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -4438,11 +4554,14 @@
      * @return a map indicates the mapping from logical slots to physical slots. The size of the map
      * should be {@link #getPhoneCount()} if success, otherwise return an empty map.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      * @deprecated use {@link #getSimSlotMapping()} instead.
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     @NonNull
     @Deprecated
     public Map<Integer, Integer> getLogicalToPhysicalSlotMapping() {
@@ -4470,6 +4589,9 @@
      *
      * @return a collection of {@link UiccSlotMapping} which indicates the mapping from logical
      *         slots to ports and physical slots.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -4527,6 +4649,9 @@
      *     the READ_PHONE_STATE permission, or if the calling app is targeting API level 29 or
      *     higher, then a SecurityException is thrown.</li>
      * </ul>
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
@@ -4579,6 +4704,8 @@
      *         found, and the carrier does not require a key.
      * @throws IllegalArgumentException when an invalid key is found or when key is required but
      *         not found.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
@@ -4624,6 +4751,9 @@
      * Requires Permission: MODIFY_PHONE_STATE.
      *
      * @see #getCarrierInfoForImsiEncryption
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
@@ -4826,6 +4956,9 @@
      *                 from disk, as well as on which {@code callback} will be called.
      * @param callback A callback called when the upload operation terminates, either in success
      *                 or in error.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public void uploadCallComposerPicture(@NonNull Path pictureToUpload,
@@ -4933,6 +5066,9 @@
      *                 read, as well as on which the callback will be called.
      * @param callback A callback called when the upload operation terminates, either in success
      *                 or in error.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public void uploadCallComposerPicture(@NonNull InputStream pictureToUpload,
@@ -5067,6 +5203,9 @@
      *
      * <p>Requires Permission: {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
      * or that the calling app has carrier privileges (see {@link #hasCarrierPrivileges}).
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
@@ -5125,6 +5264,8 @@
      *     {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
      *     for apps targeting SDK API level 29 and below.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @deprecated use {@link SubscriptionManager#getPhoneNumber(int)} instead.
      */
     @Deprecated
@@ -5134,6 +5275,7 @@
             android.Manifest.permission.READ_SMS,
             android.Manifest.permission.READ_PHONE_NUMBERS
     })
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public String getLine1Number() {
         return getLine1Number(getSubId());
     }
@@ -5200,9 +5342,13 @@
      * @param alphaTag alpha-tagging of the dailing nubmer
      * @param number The dialing number
      * @return true if the operation was executed correctly.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @deprecated use {@link SubscriptionManager#setCarrierPhoneNumber(int, String)} instead.
      */
     @Deprecated
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public boolean setLine1NumberForDisplay(String alphaTag, String number) {
         return setLine1NumberForDisplay(getSubId(), alphaTag, number);
     }
@@ -5322,6 +5468,8 @@
      * {@link SubscriptionManager#createSubscriptionGroup(List)} for the definition of a group,
      * otherwise return an empty array if there is a failure.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -5407,6 +5555,9 @@
      *
      * <p>Requires Permission: {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
      * or that the calling app has carrier privileges (see {@link #hasCarrierPrivileges}).
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
@@ -5445,6 +5596,9 @@
      *
      * @param alphaTag The alpha tag to display.
      * @param number The voicemail number.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public boolean setVoiceMailNumber(String alphaTag, String number) {
@@ -5519,6 +5673,8 @@
      * @see #KEY_VISUAL_VOICEMAIL_ENABLED_BY_USER_BOOL
      * @see #KEY_VOICEMAIL_SCRAMBLED_PIN_STRING
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      * @hide
      */
     @SystemApi
@@ -5549,6 +5705,9 @@
      * @see #createForSubscriptionId(int)
      * @see #createForPhoneAccountHandle(PhoneAccountHandle)
      * @see VisualVoicemailService
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @Nullable
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
@@ -5579,6 +5738,9 @@
      *
      * @see TelecomManager#getDefaultDialerPackage()
      * @see CarrierConfigManager#KEY_CARRIER_VVM_PACKAGE_NAME_STRING_ARRAY
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public void setVisualVoicemailSmsFilterSettings(VisualVoicemailSmsFilterSettings settings) {
@@ -5609,6 +5771,9 @@
      *
      * @see SmsManager#sendDataMessage(String, String, short, byte[], PendingIntent, PendingIntent)
      * @see SmsManager#sendTextMessage(String, String, String, PendingIntent, PendingIntent)
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public void sendVisualVoicemailSms(String number, int port, String text,
@@ -5794,6 +5959,9 @@
       * @see #SIM_ACTIVATION_STATE_ACTIVATING
       * @see #SIM_ACTIVATION_STATE_ACTIVATED
       * @see #SIM_ACTIVATION_STATE_DEACTIVATED
+      *
+      * @throws UnsupportedOperationException If the device does not have
+      *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}
       * @hide
       */
     @SystemApi
@@ -5842,6 +6010,9 @@
      * @see #SIM_ACTIVATION_STATE_ACTIVATED
      * @see #SIM_ACTIVATION_STATE_DEACTIVATED
      * @see #SIM_ACTIVATION_STATE_RESTRICTED
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      * @hide
      */
     @SystemApi
@@ -5890,6 +6061,9 @@
      * @see #SIM_ACTIVATION_STATE_ACTIVATING
      * @see #SIM_ACTIVATION_STATE_ACTIVATED
      * @see #SIM_ACTIVATION_STATE_DEACTIVATED
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      * @hide
      */
     @SystemApi
@@ -5940,6 +6114,9 @@
      * @see #SIM_ACTIVATION_STATE_ACTIVATED
      * @see #SIM_ACTIVATION_STATE_DEACTIVATED
      * @see #SIM_ACTIVATION_STATE_RESTRICTED
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      * @hide
      */
     @SystemApi
@@ -6018,6 +6195,9 @@
      *
      * <p>Requires Permission: {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
      * or that the calling app has carrier privileges (see {@link #hasCarrierPrivileges}).
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
@@ -6058,7 +6238,10 @@
      *
      * @throws SecurityException if the caller does not have carrier privileges or is not the
      *         current default dialer
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public void sendDialerSpecialCode(String inputCode) {
         try {
             final ITelephony telephony = getITelephony();
@@ -6129,6 +6312,9 @@
      *
      * <p>Requires Permission:
      * {@link android.Manifest.permission#READ_PRIVILEGED_PHONE_STATE READ_PRIVILEGED_PHONE_STATE}
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @Nullable
@@ -6154,6 +6340,9 @@
      * Returns the IMS public user identities (IMPU) that were loaded from the ISIM.
      * @return an array of IMPU strings, with one IMPU per string, or null if
      *      not present or not loaded
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      * @deprecated use {@link #getImsPublicUserIdentities()}
      */
@@ -6185,6 +6374,8 @@
      *         EF_IMPU is not available.
      * @throws IllegalStateException in case the ISIM hasn’t been loaded
      * @throws SecurityException if the caller does not have the required permission/privilege
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @NonNull
@@ -6240,6 +6431,10 @@
      * targeting API level 31+.
      *
      * @return the current call state.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELECOM}.
+     *
      * @deprecated Use {@link #getCallStateForSubscription} to retrieve the call state for a
      * specific telephony subscription (which allows carrier privileged apps),
      * {@link TelephonyCallback.CallStateListener} for real-time call state updates, or
@@ -6247,6 +6442,7 @@
      * device.
      */
     @RequiresPermission(value = android.Manifest.permission.READ_PHONE_STATE, conditional = true)
+    @RequiresFeature(PackageManager.FEATURE_TELECOM)
     @Deprecated
     public @CallState int getCallState() {
         if (mContext != null) {
@@ -6267,6 +6463,9 @@
      * @see TelephonyManager#createForSubscriptionId(int)
      * @see TelephonyManager#createForPhoneAccountHandle(PhoneAccountHandle)
      * @return The call state of the subscription associated with this TelephonyManager instance.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
@@ -6327,6 +6526,9 @@
      * @see #DATA_ACTIVITY_OUT
      * @see #DATA_ACTIVITY_INOUT
      * @see #DATA_ACTIVITY_DORMANT
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
     public int getDataActivity() {
@@ -6400,6 +6602,9 @@
      * @see #DATA_SUSPENDED
      * @see #DATA_DISCONNECTING
      * @see #DATA_HANDOVER_IN_PROGRESS
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
     public int getDataState() {
@@ -6585,10 +6790,14 @@
      * Returns the CDMA ERI icon display number. The number is assigned by
      * 3GPP2 C.R1001-H v1.0 Table 8.1-1. Additionally carriers define their own ERI display numbers.
      * Defined values are {@link #ERI_ON}, {@link #ERI_OFF}, and {@link #ERI_FLASH}.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CDMA}.
      * @hide
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CDMA)
     public @EriIconIndex int getCdmaEnhancedRoamingIndicatorDisplayNumber() {
         return getCdmaEriIconIndex(getSubId());
     }
@@ -6748,6 +6957,9 @@
      *
      * @return List of {@link android.telephony.CellInfo}; null if cell
      * information is unavailable.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
@@ -6843,6 +7055,9 @@
      *
      * @param executor the executor on which callback will be invoked.
      * @param callback a callback to receive CellInfo.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @RequiresPermission(android.Manifest.permission.ACCESS_FINE_LOCATION)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
@@ -6904,6 +7119,9 @@
      * @param workSource the requestor to whom the power consumption for this should be attributed.
      * @param executor the executor on which callback will be invoked.
      * @param callback a callback to receive CellInfo.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @SystemApi
@@ -6990,6 +7208,9 @@
 
     /**
      * Returns the MMS user agent.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_MESSAGING}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_MESSAGING)
     public String getMmsUserAgent() {
@@ -7006,6 +7227,9 @@
 
     /**
      * Returns the MMS user agent profile URL.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_MESSAGING}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_MESSAGING)
     public String getMmsUAProfUrl() {
@@ -7049,8 +7273,12 @@
      *
      * @param AID Application id. See ETSI 102.221 and 101.220.
      * @return an IccOpenLogicalChannelResponse object.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @deprecated Replaced by {@link #iccOpenLogicalChannel(String, int)}
      */
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     @Deprecated
     public IccOpenLogicalChannelResponse iccOpenLogicalChannel(String AID) {
         return iccOpenLogicalChannel(getSubId(), AID, -1);
@@ -7083,6 +7311,8 @@
      * @param aid Application id. See ETSI 102.221 and 101.220.
      * @param p2 P2 parameter (described in ISO 7816-4).
      * @return an IccOpenLogicalChannelResponse object.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      * @deprecated This API is not compatible on eUICC supporting Multiple Enabled Profile(MEP),
      * instead use {@link #iccOpenLogicalChannelByPort(int, int, String, int)}
@@ -7138,9 +7368,13 @@
      * @param aid Application id. See ETSI 102.221 and 101.220.
      * @param p2 P2 parameter (described in ISO 7816-4).
      * @return an IccOpenLogicalChannelResponse object.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     @SystemApi
     @NonNull
     public IccOpenLogicalChannelResponse iccOpenLogicalChannelByPort(int slotIndex,
@@ -7193,6 +7427,9 @@
      * @param AID Application id. See ETSI 102.221 and 101.220.
      * @param p2 P2 parameter (described in ISO 7816-4).
      * @return an IccOpenLogicalChannelResponse object.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public IccOpenLogicalChannelResponse iccOpenLogicalChannel(String AID, int p2) {
@@ -7259,6 +7496,9 @@
      * @param channel is the channel id to be closed as returned by a successful
      *            iccOpenLogicalChannel.
      * @return true if the channel was closed successfully.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      * @deprecated This API is not compatible on eUICC supporting Multiple Enabled Profile(MEP),
      * instead use {@link #iccCloseLogicalChannelByPort(int, int, int)}
@@ -7303,9 +7543,12 @@
      * @throws IllegalStateException if the Telephony process is not currently available or modem
      *                               currently can't process this command.
      * @throws IllegalArgumentException if invalid arguments are passed.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     @SystemApi
     public void iccCloseLogicalChannelByPort(int slotIndex, int portIndex, int channel) {
         try {
@@ -7341,6 +7584,8 @@
      *            iccOpenLogicalChannel.
      * @return true if the channel was closed successfully.
      * @throws IllegalArgumentException if input parameters are wrong. e.g., invalid channel
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public boolean iccCloseLogicalChannel(int channel) {
@@ -7407,6 +7652,8 @@
      * @param data Data to be sent with the APDU.
      * @return The APDU response from the ICC card with the status appended at the end, or null if
      * there is an issue connecting to the Telephony service.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      * @deprecated This API is not compatible on eUICC supporting Multiple Enabled Profile(MEP),
      * instead use
@@ -7454,9 +7701,13 @@
      * @param data Data to be sent with the APDU.
      * @return The APDU response from the ICC card with the status appended at the end, or null if
      * there is an issue connecting to the Telephony service.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     @SystemApi
     @NonNull
     public String iccTransmitApduLogicalChannelByPort(int slotIndex, int portIndex, int channel,
@@ -7501,6 +7752,9 @@
      * @param data Data to be sent with the APDU.
      * @return The APDU response from the ICC card with the status appended at
      *            the end.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public String iccTransmitApduLogicalChannel(int channel, int cla,
@@ -7566,6 +7820,9 @@
      * @param data Data to be sent with the APDU.
      * @return The APDU response from the ICC card with the status appended at
      *            the end.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      * @deprecated This API is not compatible on eUICC supporting Multiple Enabled Profile(MEP),
      * instead use
@@ -7611,9 +7868,13 @@
      * @param data Data to be sent with the APDU.
      * @return The APDU response from the ICC card with the status appended at
      *            the end.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     @SystemApi
     @NonNull
     public String iccTransmitApduBasicChannelByPort(int slotIndex, int portIndex, int cla,
@@ -7650,6 +7911,9 @@
      * @param data Data to be sent with the APDU.
      * @return The APDU response from the ICC card with the status appended at
      *            the end.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public String iccTransmitApduBasicChannel(int cla,
@@ -7706,6 +7970,9 @@
      * @param p3 P3 value of the APDU command.
      * @param filePath
      * @return The APDU response.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public byte[] iccExchangeSimIO(int fileID, int command, int p1, int p2, int p3,
@@ -7755,6 +8022,9 @@
      * @return The APDU response from the ICC card in hexadecimal format
      *         with the last 4 bytes being the status word. If the command fails,
      *         returns an empty string.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public String sendEnvelopeWithStatus(String content) {
@@ -7916,6 +8186,8 @@
      *
      * @return {@code true} on success; {@code false} on any failure.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
@@ -7946,6 +8218,8 @@
      *
      * @deprecated  Using {@link #rebootModem()} instead.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
@@ -7973,6 +8247,8 @@
      * app has carrier privileges (see {@link #hasCarrierPrivileges}).
      * @throws IllegalStateException if the Telephony process is not currently available.
      * @throws RuntimeException
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
@@ -8104,6 +8380,9 @@
      *                      {@link #getMaxNumberVerificationTimeoutMillis()}, whichever is lesser.
      * @param executor The {@link Executor} that callbacks should be executed on.
      * @param callback The callback to use for delivering results.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @SystemApi
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
@@ -8316,6 +8595,9 @@
      * See 3GPP TS 31.103 (Section 4.2.7) for the definition and more information on this table.
      *
      * @return IMS Service Table or null if not present or not loaded
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @Nullable
@@ -8434,6 +8716,9 @@
      *   Key freshness failure
      *   Authentication error, no memory space available
      *   Authentication error, no memory space available in EFMUK
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     // TODO(b/73660190): This should probably require MODIFY_PHONE_STATE, not
     // READ_PRIVILEGED_PHONE_STATE. It certainly shouldn't reference the permission in Javadoc since
@@ -8490,6 +8775,9 @@
      * or that the calling app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
      * @return an array of forbidden PLMNs or null if not available
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
@@ -8540,6 +8828,9 @@
      * @return number of PLMNs that were successfully written to the SIM FPLMN list.
      * This may be less than the number of PLMNs passed in where the SIM file does not have enough
      * room for all of the values passed in. Return -1 in the event of an unexpected failure
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
@@ -8575,6 +8866,8 @@
      * @param appType of type int of either {@link #APPTYPE_USIM} or {@link #APPTYPE_ISIM}.
      * @return HexString represents sim service table else null.
      * @throws SecurityException if the caller does not have the required permission/privileges
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
 
@@ -8611,6 +8904,9 @@
      * state.
      *
      * @param slotIndex the sim slot to reset the IMS stack on.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_IMS}.
      * @hide */
     @SystemApi
     @WorkerThread
@@ -9022,12 +9318,15 @@
      *
      * @return The bitmask of preferred network types.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      * @deprecated Use {@link #getAllowedNetworkTypesBitmask} instead.
      */
     @Deprecated
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     @SystemApi
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
     public @NetworkTypeBitMask long getPreferredNetworkTypeBitmask() {
         return getAllowedNetworkTypesBitmask();
     }
@@ -9046,6 +9345,8 @@
      *
      * @return The bitmask of allowed network types.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
@@ -9071,10 +9372,14 @@
      * or that the calling app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
      * @return the allowed network type bitmask
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      * @deprecated Use {@link #getAllowedNetworkTypesForReason} instead.
      */
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
     @SystemApi
     @Deprecated
     public @NetworkTypeBitMask long getAllowedNetworkTypes() {
@@ -9099,6 +9404,9 @@
      * <p>Requires Permission:
      * {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE} or that the calling
      * app has carrier privileges (see {@link #hasCarrierPrivileges}).
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
@@ -9185,6 +9493,9 @@
      *        tasks one at a time in serial order.
      * @param callback Returns network scan results or errors.
      * @return A NetworkScan obj which contains a callback which can be used to stop the scan.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(allOf = {
@@ -9233,11 +9544,15 @@
      *        tasks one at a time in serial order.
      * @param callback Returns network scan results or errors.
      * @return A NetworkScan obj which contains a callback which can be used to stop the scan.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(allOf = {
             android.Manifest.permission.MODIFY_PHONE_STATE
     })
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
     public @Nullable NetworkScan requestNetworkScan(
             @IncludeLocationData int includeLocationData,
             @NonNull NetworkScanRequest request,
@@ -9255,6 +9570,9 @@
     }
 
     /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
+     *
      * @deprecated
      * Use {@link
      * #requestNetworkScan(NetworkScanRequest, Executor, TelephonyScanManager.NetworkScanCallback)}
@@ -9265,6 +9583,7 @@
             android.Manifest.permission.MODIFY_PHONE_STATE,
             Manifest.permission.ACCESS_FINE_LOCATION
     })
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
     public NetworkScan requestNetworkScan(
         NetworkScanRequest request, TelephonyScanManager.NetworkScanCallback callback) {
         return requestNetworkScan(request, AsyncTask.SERIAL_EXECUTOR, callback);
@@ -9285,6 +9604,9 @@
      * attaching to the selected PLMN until reboot; otherwise, attach to the chosen PLMN and resume
      * normal network selection next time.
      * @return {@code true} on success; {@code false} on any failure.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
@@ -9316,6 +9638,9 @@
      *         {@link AccessNetworkConstants.AccessNetworkType#UNKNOWN}, modem will select
      *         the next best RAN for network registration.
      * @return {@code true} on success; {@code false} on any failure.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
@@ -9368,6 +9693,9 @@
      * or that the calling app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
      * @return the network selection mode.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @SuppressAutoDoc // No support for carrier privileges (b/72967236).
     @RequiresPermission(anyOf = {
@@ -9397,6 +9725,9 @@
      * (see {@link #hasCarrierPrivileges})
      *
      * @return manually selected network info on success or empty string on failure
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @SuppressAutoDoc // No support carrier privileges (b/72967236).
     @RequiresPermission(android.Manifest.permission.READ_PRECISE_PHONE_STATE)
@@ -9426,6 +9757,8 @@
      *
      * @return {@code true} if this device is in emergency SMS mode, {@code false} otherwise.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_MESSAGING}.
      * @hide
      */
     @SystemApi
@@ -9495,11 +9828,15 @@
      *
      * @param networkTypeBitmask The bitmask of preferred network types.
      * @return true on success; false on any failure.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      * @deprecated Use {@link #setAllowedNetworkTypesForReason} instead.
      */
     @Deprecated
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
     @SystemApi
     public boolean setPreferredNetworkTypeBitmask(@NetworkTypeBitMask long networkTypeBitmask) {
         try {
@@ -9541,6 +9878,10 @@
      *
      * @param allowedNetworkTypes The bitmask of allowed network types.
      * @return true on success; false on any failure.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
+     *
      * @hide
      * @deprecated Use {@link #setAllowedNetworkTypesForReason} instead with reason
      * {@link #ALLOWED_NETWORK_TYPES_REASON_CARRIER}.
@@ -9628,11 +9969,16 @@
      * @throws IllegalStateException if the Telephony process is not currently available.
      * @throws IllegalArgumentException if invalid AllowedNetworkTypesReason is passed.
      * @throws SecurityException if the caller does not have the required privileges or if the
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * caller tries to use one of the following security-based reasons without
      * {@link android.Manifest.permission#MODIFY_PHONE_STATE} permissions.
      * <ol>
      *     <li>{@code TelephonyManager.ALLOWED_NETWORK_TYPES_REASON_ENABLE_2G}</li>
      * </ol>
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
     @RequiresFeature(
@@ -9672,6 +10018,8 @@
      * @throws IllegalStateException    if the Telephony process is not currently available.
      * @throws IllegalArgumentException if invalid AllowedNetworkTypesReason is passed.
      * @throws SecurityException if the caller does not have the required permission/privileges
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     @RequiresFeature(
@@ -9746,6 +10094,9 @@
      * <p>Requires that the calling app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
      * @return true on success; false on any failure.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
     public boolean setPreferredNetworkTypeToGlobal() {
@@ -9771,6 +10122,9 @@
      * Requires Permission: MODIFY_PHONE_STATE.
      *
      * @return {@code true} if DUN APN is required for tethering.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
@@ -9824,6 +10178,9 @@
      * is a superset of the checks done in SubscriptionManager#canManageSubscription.
      *
      * @return true if the app has carrier privileges.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public boolean hasCarrierPrivileges() {
@@ -9871,6 +10228,9 @@
      *
      * @param brand The brand name to display/set.
      * @return true if the operation was executed correctly.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public boolean setOperatorBrandOverride(String brand) {
@@ -9972,7 +10332,11 @@
      * Expose the rest of ITelephony to @SystemApi
      */
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CDMA}.
+     * @hide
+     */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CDMA)
@@ -9980,7 +10344,11 @@
         return getCdmaMdn(getSubId());
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CDMA}.
+     * @hide
+     */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CDMA)
@@ -9997,7 +10365,11 @@
         }
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CDMA}.
+     * @hide
+     */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CDMA)
@@ -10005,7 +10377,11 @@
         return getCdmaMin(getSubId());
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CDMA}.
+     * @hide
+     */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CDMA)
@@ -10022,7 +10398,11 @@
         }
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
+     * @hide
+     */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
@@ -10039,7 +10419,11 @@
         return CARRIER_PRIVILEGE_STATUS_NO_ACCESS;
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
+     * @hide
+     */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
@@ -10056,14 +10440,22 @@
         return CARRIER_PRIVILEGE_STATUS_NO_ACCESS;
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
+     * @hide
+     */
     @SystemApi
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public List<String> getCarrierPackageNamesForIntent(Intent intent) {
         return getCarrierPackageNamesForIntentAndPhone(intent, getPhoneId());
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
+     * @hide
+     */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
@@ -10090,10 +10482,13 @@
      * @return The system-selected package that provides the {@link CarrierService} implementation
      * for the current subscription, or {@code null} if none is resolved
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public @Nullable String getCarrierServicePackageName() {
         return getCarrierServicePackageNameForLogicalSlot(getPhoneId());
     }
@@ -10107,10 +10502,13 @@
      * @return The system-selected package that provides the {@link CarrierService} implementation
      * for the slot, or {@code null} if none is resolved
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public @Nullable String getCarrierServicePackageNameForLogicalSlot(int logicalSlotIndex) {
         try {
             ITelephony telephony = getITelephony();
@@ -10144,6 +10542,8 @@
     /**
      * Get the names of packages with carrier privileges for all the active subscriptions.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -10194,6 +10594,8 @@
      *
      * @throws IllegalArgumentException if requested state is invalid.
      * @throws SecurityException if the caller does not have the permission.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
@@ -10223,6 +10625,9 @@
      *
      * @return the user-set status for enriched calling with call composer, either of
      * {@link #CALL_COMPOSER_STATUS_ON} or {@link #CALL_COMPOSER_STATUS_OFF}.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
@@ -10239,7 +10644,11 @@
         return CALL_COMPOSER_STATUS_OFF;
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
+     * @hide
+     */
     @SystemApi
     @SuppressLint("RequiresPermission")
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
@@ -10254,6 +10663,9 @@
     }
 
     /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
+     *
      * @deprecated Use  {@link android.telecom.TelecomManager#placeCall(Uri address,
      * Bundle extras)} instead.
      * @hide
@@ -10261,6 +10673,7 @@
     @Deprecated
     @SystemApi
     @RequiresPermission(android.Manifest.permission.CALL_PHONE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public void call(String callingPackage, String number) {
         try {
             ITelephony telephony = getITelephony();
@@ -10307,6 +10720,8 @@
     }
 
     /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELECOM}.
      * @deprecated Use {@link android.telecom.TelecomManager#isInCall} instead
      * @hide
      */
@@ -10316,12 +10731,15 @@
             android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
             android.Manifest.permission.READ_PHONE_STATE
     })
+    @RequiresFeature(PackageManager.FEATURE_TELECOM)
     public boolean isOffhook() {
         TelecomManager tm = (TelecomManager) mContext.getSystemService(TELECOM_SERVICE);
         return tm.isInCall();
     }
 
     /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELECOM}.
      * @deprecated Use {@link android.telecom.TelecomManager#isRinging} instead
      * @hide
      */
@@ -10331,12 +10749,15 @@
             android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
             android.Manifest.permission.READ_PHONE_STATE
     })
+    @RequiresFeature(PackageManager.FEATURE_TELECOM)
     public boolean isRinging() {
         TelecomManager tm = (TelecomManager) mContext.getSystemService(TELECOM_SERVICE);
         return tm.isRinging();
     }
 
     /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELECOM}.
      * @deprecated Use {@link android.telecom.TelecomManager#isInCall} instead
      * @hide
      */
@@ -10346,12 +10767,15 @@
             android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
             android.Manifest.permission.READ_PHONE_STATE
     })
+    @RequiresFeature(PackageManager.FEATURE_TELECOM)
     public boolean isIdle() {
         TelecomManager tm = (TelecomManager) mContext.getSystemService(TELECOM_SERVICE);
         return !tm.isInCall();
     }
 
     /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @deprecated Use {@link android.telephony.TelephonyManager#getServiceState} instead
      * @hide
      */
@@ -10361,6 +10785,7 @@
             android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
             android.Manifest.permission.READ_PHONE_STATE
     })
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
     public boolean isRadioOn() {
         try {
             ITelephony telephony = getITelephony();
@@ -10372,7 +10797,11 @@
         return false;
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
+     * @hide
+     */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
@@ -10387,7 +10816,11 @@
         return false;
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
+     * @hide
+     */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
@@ -10403,11 +10836,15 @@
     }
 
     /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
+     *
      * @deprecated use {@link #supplyIccLockPin(String)} instead.
      * @hide
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     @Deprecated
     public int[] supplyPinReportResult(String pin) {
         try {
@@ -10421,11 +10858,15 @@
     }
 
     /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
+     *
      * @deprecated use {@link #supplyIccLockPuk(String, String)} instead.
      * @hide
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     @Deprecated
     public int[] supplyPukReportResult(String puk, String pin) {
         try {
@@ -10451,6 +10892,8 @@
      * {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE} or that the calling
      * app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -10487,6 +10930,8 @@
      * {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE} or that the calling
      * app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -10560,6 +11005,9 @@
      * @param callback called by the framework to inform the caller of the result of executing the
      *                 USSD request (see {@link UssdResponseCallback}).
      * @param handler the {@link Handler} to run the request on.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @RequiresPermission(android.Manifest.permission.CALL_PHONE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
@@ -10604,6 +11052,9 @@
      * voice and data simultaneously. This can change based on location or network condition.
      *
      * @return {@code true} if simultaneous voice and data supported, and {@code false} otherwise.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
     public boolean isConcurrentVoiceAndDataSupported() {
@@ -10617,9 +11068,13 @@
         return false;
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
+     * @hide */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public boolean handlePinMmi(String dialString) {
         try {
             ITelephony telephony = getITelephony();
@@ -10631,9 +11086,14 @@
         return false;
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
+     * @hide
+     */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public boolean handlePinMmiForSubscriber(int subId, String dialString) {
         try {
             ITelephony telephony = getITelephony();
@@ -10645,7 +11105,11 @@
         return false;
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
+     * @hide
+     */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
@@ -10663,6 +11127,8 @@
      * @deprecated - use the APIs {@link requestRadioPowerOffForReason} and
      * {@link clearRadioPowerOffForReason}.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @Deprecated
@@ -10690,6 +11156,8 @@
      * @deprecated - use the APIs {@link requestRadioPowerOffForReason} and
      * {@link clearRadioPowerOffForReason}.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @Deprecated
@@ -10737,6 +11205,8 @@
      * @throws SecurityException if the caller does not have MODIFY_PHONE_STATE permission.
      * @throws IllegalStateException if the Telephony service is not currently available.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @SystemApi
@@ -10766,6 +11236,8 @@
      * @throws SecurityException if the caller does not have MODIFY_PHONE_STATE permission.
      * @throws IllegalStateException if the Telephony service is not currently available.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @SystemApi
@@ -10795,6 +11267,8 @@
      * @throws SecurityException if the caller does not have READ_PRIVILEGED_PHONE_STATE permission.
      * @throws IllegalStateException if the Telephony service is not currently available.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @SystemApi
@@ -10824,6 +11298,8 @@
      * <p>To know when the radio has completed powering off, use
      * {@link PhoneStateListener#LISTEN_SERVICE_STATE LISTEN_SERVICE_STATE}.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @SystemApi
@@ -10845,6 +11321,9 @@
      * Check if any radio is on over all the slot indexes.
      *
      * @return {@code true} if any radio is on over any slot index.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @SystemApi
@@ -10891,6 +11370,8 @@
      * {@link android.Manifest.permission#READ_PHONE_STATE} or that the calling
      * app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @SystemApi
@@ -10920,7 +11401,11 @@
         Log.e(TAG, "Do not call TelephonyManager#updateServiceLocation()");
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
+     * @hide
+     */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
@@ -10935,7 +11420,11 @@
         return false;
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
+     * @hide
+     */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
@@ -10950,7 +11439,11 @@
         return false;
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
+     * @hide
+     */
     @SystemApi
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
     public boolean isDataConnectivityPossible() {
@@ -10965,7 +11458,11 @@
         return false;
     }
 
-    /** @hide */
+    /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
+     * @hide
+     */
     @SystemApi
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
     public boolean needsOtaServiceProvisioning() {
@@ -11016,23 +11513,29 @@
      * app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
      * @param enable Whether to enable mobile data.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      * @deprecated use setDataEnabledForReason with reason DATA_ENABLED_REASON_USER instead.
      *
      */
     @Deprecated
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
     public void setDataEnabled(boolean enable) {
         setDataEnabled(getSubId(SubscriptionManager.getDefaultDataSubscriptionId()), enable);
     }
 
     /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      * @hide
      * @deprecated use {@link #setDataEnabledForReason(int, boolean)} instead.
     */
     @SystemApi
     @Deprecated
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
     public void setDataEnabled(int subId, boolean enable) {
         try {
             setDataEnabledForReason(subId, DATA_ENABLED_REASON_USER, enable);
@@ -11043,10 +11546,14 @@
 
     /**
      * @deprecated use {@link #isDataEnabled()} instead.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      * @hide
      */
     @SystemApi
     @Deprecated
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
     public boolean getDataEnabled() {
         return isDataEnabled();
     }
@@ -11070,6 +11577,9 @@
      * {@link ConnectivityManager#getRestrictBackgroundStatus}.
      *
      * @return true if mobile data is enabled.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      */
     @RequiresPermission(anyOf = {android.Manifest.permission.ACCESS_NETWORK_STATE,
             android.Manifest.permission.MODIFY_PHONE_STATE,
@@ -11100,6 +11610,9 @@
      * has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
      * @return {@code true} if the data roaming is enabled on the subscription, otherwise return
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      * {@code false}.
      */
     @RequiresPermission(anyOf = {android.Manifest.permission.ACCESS_NETWORK_STATE,
@@ -11139,6 +11652,8 @@
      * {@link android.Manifest.permission#READ_PRIVILEGED_PHONE_STATE READ_PRIVILEGED_PHONE_STATE}
      * or that the calling app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CDMA}.
      * @hide
      */
     @SystemApi
@@ -11181,6 +11696,8 @@
      * {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE} or that the calling
      * app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CDMA}.
      * @hide
      */
     @SystemApi
@@ -11249,6 +11766,8 @@
      * {@link android.Manifest.permission#READ_PRIVILEGED_PHONE_STATE READ_PRIVILEGED_PHONE_STATE}
      * or that the calling app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CDMA}.
      * @hide
      */
     @SystemApi
@@ -11287,6 +11806,8 @@
      * {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE} or that the calling
      * app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CDMA}.
      * @hide
      */
     @SystemApi
@@ -11322,6 +11843,8 @@
      *
      * @param isEnabled {@code true} to enable mobile data roaming, otherwise disable it.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      * @hide
      */
     @SystemApi
@@ -11340,11 +11863,15 @@
     }
 
     /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
+     *
      * @deprecated use {@link #isDataEnabled()} instead.
      * @hide
      */
     @Deprecated
     @SystemApi
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
     public boolean getDataEnabled(int subId) {
         try {
             return isDataEnabledForReason(subId, DATA_ENABLED_REASON_USER);
@@ -11355,6 +11882,8 @@
     }
 
     /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_IMS}.
      * @deprecated Use {@link android.telephony.ims.ImsMmTelManager#setVtSettingEnabled(boolean)}
      * instead.
      * @hide
@@ -11362,6 +11891,7 @@
     @Deprecated
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_IMS)
     public void enableVideoCalling(boolean enable) {
         try {
             ITelephony telephony = getITelephony();
@@ -11373,6 +11903,8 @@
     }
 
     /**
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_IMS}.
      * @deprecated Use {@link ImsMmTelManager#isVtSettingEnabled()} instead to check if the user
      * has enabled the Video Calling setting, {@link ImsMmTelManager#isAvailable(int, int)} to
      * determine if video calling is available, or {@link ImsMmTelManager#isCapable(int, int)} to
@@ -11385,6 +11917,7 @@
             android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
             android.Manifest.permission.READ_PHONE_STATE
     })
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_IMS)
     public boolean isVideoCallingEnabled() {
         try {
             ITelephony telephony = getITelephony();
@@ -11400,6 +11933,9 @@
      * Whether the device supports configuring the DTMF tone length.
      *
      * @return {@code true} if the DTMF tone length can be changed, and {@code false} otherwise.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public boolean canChangeDtmfToneLength() {
@@ -11421,7 +11957,11 @@
      * Whether the device is a world phone.
      *
      * @return {@code true} if the device is a world phone, and {@code false} otherwise.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY}.
      */
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY)
     public boolean isWorldPhone() {
         try {
             ITelephony telephony = getITelephony();
@@ -11442,8 +11982,11 @@
      *
      * @return {@code true} if the device supports TTY mode, and {@code false} otherwise.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELECOM}.
      */
     @Deprecated
+    @RequiresFeature(PackageManager.FEATURE_TELECOM)
     public boolean isTtyModeSupported() {
         try {
             TelecomManager telecomManager = null;
@@ -11464,6 +12007,9 @@
      * support for the feature and device firmware support.
      *
      * @return {@code true} if the device and carrier both support RTT, {@code false} otherwise.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_IMS}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_IMS)
     public boolean isRttSupported() {
@@ -11484,6 +12030,9 @@
      *
      * @return {@code true} if the device supports hearing aid compatibility, and {@code false}
      * otherwise.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public boolean isHearingAidCompatibilitySupported() {
@@ -11746,11 +12295,14 @@
      * <p>Requires Permission:
      *   {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE}
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * {@hide}
      **/
     @SystemApi
     @Deprecated
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public void setSimPowerState(int state) {
         setSimPowerStateForSlot(getSlotIndex(), state);
     }
@@ -11772,11 +12324,14 @@
      * <p>Requires Permission:
      *   {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE}
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * {@hide}
      **/
     @SystemApi
     @Deprecated
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public void setSimPowerStateForSlot(int slotIndex, int state) {
         try {
             ITelephony telephony = getITelephony();
@@ -11809,6 +12364,8 @@
      * <p>Requires Permission:
      *   {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE}
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * {@hide}
      **/
     @SystemApi
@@ -11839,6 +12396,8 @@
      * <p>Requires Permission:
      *   {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE}
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * {@hide}
      **/
     @SystemApi
@@ -11993,6 +12552,9 @@
      * application currently configured for this user.
      * @return component name of the app and class to direct Respond Via Message intent to, or
      * {@code null} if the functionality is not supported.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_MESSAGING}.
      * @hide
      */
     @SystemApi
@@ -12015,6 +12577,9 @@
      * user associated with this subscription.
      * @return component name of the app and class to direct Respond Via Message intent to, or
      * {@code null} if the functionality is not supported.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_MESSAGING}.
      * @hide
      */
     @SystemApi
@@ -12151,9 +12716,13 @@
      * @return The {@link PhoneAccountHandle} associated with the TelphonyManager, or {@code null}
      * if there is no associated {@link PhoneAccountHandle}; this can happen if the subscription is
      * data-only or an opportunistic subscription.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public @Nullable PhoneAccountHandle getPhoneAccountHandle() {
         return getPhoneAccountHandleForSubscriptionId(getSubId());
     }
@@ -12215,10 +12784,14 @@
      * Resets Telephony and IMS settings back to factory defaults only for the subscription
      * associated with this instance.
      * @see #createForSubscriptionId(int)
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY}.
      * @hide
      */
     @SystemApi
     @RequiresPermission(Manifest.permission.CONNECTIVITY_INTERNAL)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY)
     public void resetSettings() {
         try {
             Log.d(TAG, "resetSettings: subId=" + getSubId());
@@ -12240,6 +12813,8 @@
      *
      * @see Locale#toLanguageTag()
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -12332,10 +12907,14 @@
      * @param callback A callback object to which the result will be delivered. If there was an
      *                 error processing the request, {@link OutcomeReceiver#onError} will be called
      *                 with more details about the error.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY}.
      * @hide
      */
     @SystemApi
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY)
     public void requestModemActivityInfo(@NonNull @CallbackExecutor Executor executor,
             @NonNull OutcomeReceiver<ModemActivityInfo, ModemActivityInfoException> callback) {
         Objects.requireNonNull(executor);
@@ -12422,6 +13001,9 @@
      * and {@link android.Manifest.permission#ACCESS_COARSE_LOCATION}.
      * May return {@code null} when the subscription is inactive or when there was an error
      * communicating with the phone process.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(allOf = {
@@ -12454,12 +13036,16 @@
      * location related information.
      * May return {@code null} when the subscription is inactive or when there was an error
      * communicating with the phone process.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(allOf = {
             Manifest.permission.READ_PHONE_STATE,
             Manifest.permission.ACCESS_COARSE_LOCATION
     })
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
     public @Nullable ServiceState getServiceState(@IncludeLocationData int includeLocationData) {
         return getServiceStateForSubscriber(getSubId(),
                 includeLocationData != INCLUDE_LOCATION_DATA_FINE,
@@ -12518,6 +13104,9 @@
      * voicemail ringtone.
      * @return The URI for the ringtone to play when receiving a voicemail from a specific
      * PhoneAccount. May be {@code null} if no ringtone is set.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public @Nullable Uri getVoicemailRingtoneUri(PhoneAccountHandle accountHandle) {
@@ -12544,10 +13133,13 @@
      * @param uri The URI for the ringtone to play when receiving a voicemail from a specific
      * PhoneAccount.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      * @deprecated Use {@link android.provider.Settings#ACTION_CHANNEL_NOTIFICATION_SETTINGS}
      * instead.
      */
     @Deprecated
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public void setVoicemailRingtoneUri(PhoneAccountHandle phoneAccountHandle, Uri uri) {
         try {
             ITelephony service = getITelephony();
@@ -12565,6 +13157,9 @@
      * @param accountHandle The handle for the {@link PhoneAccount} for which to retrieve the
      * voicemail vibration setting.
      * @return {@code true} if the vibration is set for this PhoneAccount, {@code false} otherwise.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public boolean isVoicemailVibrationEnabled(PhoneAccountHandle accountHandle) {
@@ -12591,10 +13186,13 @@
      * @param enabled Whether to enable or disable vibration for voicemail notifications from a
      * specific PhoneAccount.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      * @deprecated Use {@link android.provider.Settings#ACTION_CHANNEL_NOTIFICATION_SETTINGS}
      * instead.
      */
     @Deprecated
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public void setVoicemailVibrationEnabled(PhoneAccountHandle phoneAccountHandle,
             boolean enabled) {
         try {
@@ -12620,6 +13218,9 @@
      *
      * @return Carrier id of the current subscription. Return {@link #UNKNOWN_CARRIER_ID} if the
      * subscription is unavailable or the carrier cannot be identified.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public int getSimCarrierId() {
@@ -12645,6 +13246,9 @@
      *
      * @return Carrier name of the current subscription. Return {@code null} if the subscription is
      * unavailable or the carrier cannot be identified.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public @Nullable CharSequence getSimCarrierIdName() {
@@ -12683,6 +13287,9 @@
      * @return Returns fine-grained carrier id of the current subscription.
      * Return {@link #UNKNOWN_CARRIER_ID} if the subscription is unavailable or the carrier cannot
      * be identified.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public int getSimSpecificCarrierId() {
@@ -12709,6 +13316,9 @@
      *
      * @return user-facing name of the subscription specific carrier id. Return {@code null} if the
      * subscription is unavailable or the carrier cannot be identified.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public @Nullable CharSequence getSimSpecificCarrierIdName() {
@@ -12737,6 +13347,9 @@
      *
      * @return matching carrier id from sim MCCMNC. Return {@link #UNKNOWN_CARRIER_ID} if the
      * subscription is unavailable or the carrier cannot be identified.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public int getCarrierIdFromSimMccMnc() {
@@ -12812,6 +13425,9 @@
      *
      * @param appType the uicc app type.
      * @return Application ID for specified app type or {@code null} if no uicc or error.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @Nullable
@@ -12877,6 +13493,9 @@
      * Requires that the calling app has READ_PRIVILEGED_PHONE_STATE permission
      *
      * @return PRLVersion or null if error.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CDMA}.
      * @hide
      */
     @SystemApi
@@ -12942,6 +13561,9 @@
      *
      * @return The number of carriers set successfully. Should be length of
      * carrierList on success; -1 if carrierList null or on error.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CARRIERLOCK}.
      * @hide
      */
     @SystemApi
@@ -13068,6 +13690,9 @@
      * @return {@link #SET_CARRIER_RESTRICTION_SUCCESS} in case of success.
      * {@link #SET_CARRIER_RESTRICTION_NOT_SUPPORTED} if the modem does not support the
      * configuration. {@link #SET_CARRIER_RESTRICTION_ERROR} in all other error cases.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CARRIERLOCK}.
      * @hide
      */
     @SystemApi
@@ -13101,11 +13726,15 @@
      *
      * @return List of {@link android.telephony.CarrierIdentifier}; empty list
      * means all carriers are allowed.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CARRIERLOCK}.
      * @hide
      */
     @Deprecated
     @SystemApi
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CARRIERLOCK)
     public List<CarrierIdentifier> getAllowedCarriers(int slotIndex) {
         if (SubscriptionManager.isValidPhoneId(slotIndex)) {
             CarrierRestrictionRules carrierRestrictionRule = getCarrierRestrictionRules();
@@ -13127,6 +13756,9 @@
      * @return {@link CarrierRestrictionRules} which contains the allowed carrier list and the
      * excluded carrier list with the priority between the two lists. Returns {@code null}
      * in case of error.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CARRIERLOCK}.
      * @hide
      */
     @SystemApi
@@ -13195,6 +13827,8 @@
      *                       status result fetched from the radio
      * @throws SecurityException if the caller does not have the required permission/privileges or
      *                           if the caller is not pre-registered.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
@@ -13261,11 +13895,15 @@
      * @see #resetAllCarrierActions()
      * @deprecated use {@link #setDataEnabledForReason(int, boolean) with
      * reason {@link #DATA_ENABLED_REASON_CARRIER}} instead.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      * @hide
      */
     @Deprecated
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
     public void setCarrierDataEnabled(boolean enabled) {
         try {
             setDataEnabledForReason(DATA_ENABLED_REASON_CARRIER, enabled);
@@ -13289,6 +13927,8 @@
      * @deprecated - use the APIs {@link requestRadioPowerOffForReason} and
      * {@link clearRadioPowerOffForReason}.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @Deprecated
@@ -13408,6 +14048,9 @@
      *
      * @param report control start/stop reporting network status.
      * @see #resetAllCarrierActions()
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @SystemApi
@@ -13434,6 +14077,8 @@
      *
      * <p>Requires Permission:
      * {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE}.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -13556,6 +14201,8 @@
      * has {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE} irrespective of
      * the reason.
      * @throws IllegalStateException if the Telephony process is not currently available.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      */
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
@@ -13599,6 +14246,8 @@
      * {@link android.Manifest.permission#MODIFY_PHONE_STATE}
      * {@link android.Manifest.permission#READ_BASIC_PHONE_STATE}
      * @throws IllegalStateException if the Telephony process is not currently available.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      */
     @RequiresPermission(anyOf = {android.Manifest.permission.ACCESS_NETWORK_STATE,
             android.Manifest.permission.READ_PHONE_STATE,
@@ -13655,6 +14304,9 @@
      * given subId. Otherwise, applies to {@link SubscriptionManager#getDefaultSubscriptionId()}
      *
      * @return true if phone is in emergency callback mode.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      * @hide
      */
     @SystemApi
@@ -13694,6 +14346,9 @@
      * given subId. Otherwise, applies to {@link SubscriptionManager#getDefaultSubscriptionId()}.
      *
      * @return {@code true} if manual network selection is allowed, otherwise return {@code false}.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @SuppressAutoDoc // No support carrier privileges (b/72967236).
     @RequiresPermission(anyOf = {android.Manifest.permission.READ_PRECISE_PHONE_STATE,
@@ -13717,6 +14372,9 @@
      * Get the most recent SignalStrength information reported by the modem. Due
      * to power saving this information may not always be current.
      * @return the most recent cached signal strength info from the modem
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @Nullable
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
@@ -13743,6 +14401,9 @@
      *   <LI>And possibly others.</LI>
      * </UL>
      * @return {@code true} if the overall data connection is allowed; {@code false} if not.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      */
     @RequiresPermission(anyOf = {android.Manifest.permission.ACCESS_NETWORK_STATE,
             android.Manifest.permission.READ_PHONE_STATE,
@@ -13913,6 +14574,9 @@
      *
      * @param enable enable(True) or disable(False)
      * @return returns true if successfully set.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
@@ -13942,6 +14606,9 @@
      * <p>
      * Requires Permission:
      *   {@link android.Manifest.permission#READ_PRIVILEGED_PHONE_STATE READ_PRIVILEGED_PHONE_STATE}
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
@@ -14143,6 +14810,8 @@
      * that the calling app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
      * @throws SecurityException if the caller does not have the required permission
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
@@ -14178,6 +14847,8 @@
      * <p> Requires permission:
      * {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE}
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
@@ -14205,6 +14876,8 @@
      * <p> Requires permission:
      * {@link android.Manifest.permission#READ_ACTIVE_EMERGENCY_SESSION}
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION)
@@ -14231,6 +14904,8 @@
      * <p> Requires permission:
      * {@link android.Manifest.permission#READ_ACTIVE_EMERGENCY_SESSION}
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION)
@@ -14291,6 +14966,9 @@
      * subscription, the key is {@link SubscriptionManager#getDefaultSubscriptionId}) and the value
      * as the list of {@link EmergencyNumber}; empty Map if this information is not available;
      * or throw a SecurityException if the caller does not have the permission.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
     @NonNull
@@ -14347,6 +15025,8 @@
      * as the list of {@link EmergencyNumber}; empty Map if this information is not available;
      * or throw a SecurityException if the caller does not have the permission.
      * @throws IllegalStateException if the Telephony process is not currently available.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
     @NonNull
@@ -14415,6 +15095,8 @@
      * @return {@code true} if the given number is an emergency number based on current locale,
      * SIM card(s), Android database, modem, network or defaults; {@code false} otherwise.
      * @throws IllegalStateException if the Telephony process is not currently available.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_CALLING)
     public boolean isEmergencyNumber(@NonNull String number) {
@@ -14452,6 +15134,8 @@
      * network; {@code false} if it is not; or throw an SecurityException if the caller does not
      * have the required permission/privileges
      * @throws IllegalStateException if the Telephony process is not currently available.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      *
      * @deprecated Please use {@link TelephonyManager#isEmergencyNumber(String)} instead.
      * @hide
@@ -14481,6 +15165,8 @@
      * <p>Requires Permission:
      *   {@link android.Manifest.permission#READ_PRIVILEGED_PHONE_STATE READ_PRIVILEGED_PHONE_STATE}
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      * @hide
      */
     @SystemApi
@@ -14632,6 +15318,9 @@
      * @param callback Callback will be triggered once it succeeds or failed.
      *                 See the {@code SET_OPPORTUNISTIC_SUB_*} constants
      *                 for more details. Pass null if don't care about the result.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
     public void setPreferredOpportunisticDataSubscription(int subId, boolean needValidation,
@@ -14692,6 +15381,8 @@
      * {@link SubscriptionManager#DEFAULT_SUBSCRIPTION_ID} if there are no preferred
      * subscription id
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      */
     @RequiresPermission(anyOf = {
             android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
@@ -14731,6 +15422,8 @@
      * @param executor The executor of where the callback will execute.
      * @param callback Callback will be triggered once it succeeds or failed.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
@@ -14791,10 +15484,13 @@
      * @param enable whether to enable or disable the modem stack.
      * @return whether the operation is successful.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY}.
      * @hide
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY)
     public boolean enableModemForSlot(int slotIndex, boolean enable) {
         boolean ret = false;
         try {
@@ -14817,10 +15513,14 @@
      * {@link #hasCarrierPrivileges()}).
      *
      * @param slotIndex which slot it's checking.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(anyOf = {android.Manifest.permission.READ_PHONE_STATE,
             android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE})
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY)
     public boolean isModemEnabledForSlot(int slotIndex) {
         try {
             ITelephony telephony = getITelephony();
@@ -14883,6 +15583,8 @@
      * @param isMultiSimCarrierRestricted true if usage of multiple SIMs is restricted, false
      * otherwise.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CARRIERLOCK}.
      * @hide
      */
     @SystemApi
@@ -14938,6 +15640,9 @@
      * {@link #MULTISIM_NOT_SUPPORTED_BY_HARDWARE} if the device does not support multiple SIMs.
      * {@link #MULTISIM_NOT_SUPPORTED_BY_CARRIER} in the device supports multiple SIMs, but the
      * functionality is restricted by the carrier.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
@@ -14969,6 +15674,8 @@
      *
      * @param numOfSims number of live SIMs we want to switch to
      * @throws android.os.RemoteException
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
@@ -14996,6 +15703,9 @@
      *
      * @return {@code true} if reboot will be triggered after making changes to modem
      * configurations, otherwise return {@code false}.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      */
     @RequiresPermission(Manifest.permission.READ_PHONE_STATE)
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
@@ -15158,6 +15868,8 @@
      *         {@link #CARRIER_PRIVILEGE_STATUS_RULES_NOT_LOADED}, or
      *         {@link #CARRIER_PRIVILEGE_STATUS_ERROR_LOADING_RULES}
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -15272,6 +15984,8 @@
      * @param apnType Value indicating the apn type. Apn types are defined in {@link ApnSetting}.
      * @return whether data is enabled for a apn type.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      * @hide
      */
     @SystemApi
@@ -15294,6 +16008,8 @@
      * Whether an APN type is metered or not. It will be evaluated with the subId associated
      * with the TelephonyManager instance.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      * @hide
      */
     @SystemApi
@@ -15323,6 +16039,9 @@
      * @param executor The executor to execute the callback on
      * @param callback The callback that gets invoked when the radio responds to the request. Called
      *                 with {@code true} if the request succeeded, {@code false} otherwise.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @SystemApi
@@ -15341,6 +16060,9 @@
      * Same as {@link #setSystemSelectionChannels(List, Executor, Consumer<Boolean>)}, but to be
      * used when the caller does not need feedback on the results of the operation.
      * @param specifiers which bands to scan.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @SystemApi
@@ -15388,6 +16110,8 @@
      * @return a list of {@link RadioAccessSpecifier}, or an empty list if no bands are specified.
      * @throws IllegalStateException if the Telephony process is not currently available.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @SystemApi
@@ -15416,6 +16140,8 @@
      * @return {@code true} if input mccmnc and mvno matches with data from sim operator.
      * {@code false} otherwise.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * {@hide}
      */
     @SystemApi
@@ -15506,6 +16232,8 @@
      * {@link CallForwardingInfo#REASON_UNCONDITIONAL}, {@link CallForwardingInfo#REASON_BUSY},
      * {@link CallForwardingInfo#REASON_NO_REPLY}, {@link CallForwardingInfo#REASON_NOT_REACHABLE},
      * {@link CallForwardingInfo#REASON_ALL}, or {@link CallForwardingInfo#REASON_ALL_CONDITIONAL}
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      *
      * @hide
      */
@@ -15583,6 +16311,8 @@
      * <li>{@link CallForwardingInfo#getTimeoutSeconds()} returns a non-positive value when
      * enabling call forwarding</li>
      * </ul>
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
@@ -15707,6 +16437,9 @@
      *                          <li>{@link #CALL_WAITING_STATUS_NOT_SUPPORTED}}</li>
      *                          <li>{@link #CALL_WAITING_STATUS_FDN_CHECK_FAILURE}}</li>
      *                       </ul>
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      * @hide
      */
     @SystemApi
@@ -15757,6 +16490,9 @@
      *                       {@link #CALL_WAITING_STATUS_NOT_SUPPORTED} or
      *                       {@link #CALL_WAITING_STATUS_UNKNOWN_ERROR} or
      *                       {@link #CALL_WAITING_STATUS_FDN_CHECK_FAILURE} if it failed.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_CALLING}.
      * @hide
      */
     @SystemApi
@@ -15857,6 +16593,9 @@
      *
      * @param policy The data policy to enable.
      * @param enabled Whether to enable or disable the policy.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      * @hide
      */
     @SystemApi
@@ -15878,6 +16617,9 @@
      *
      * @param policy The data policy that you want the status for.
      * @return {@code true} if enabled, {@code false} otherwise.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      * @hide
      */
     @SystemApi
@@ -15913,6 +16655,8 @@
      * {@link android.Manifest.permission#READ_PRIVILEGED_PHONE_STATE READ_PRIVILEGED_PHONE_STATE}
      * or that the calling app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @WorkerThread
@@ -15947,6 +16691,8 @@
      * {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE} or that the calling
      * app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -15989,6 +16735,8 @@
      * {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE} or that the calling
      * app has carrier privileges (see {@link #hasCarrierPrivileges}).
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -16137,6 +16885,8 @@
      * </ol>
      * @return operation result.
      * @throws IllegalStateException if the Telephony process is not currently available.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @SystemApi
@@ -16171,6 +16921,8 @@
      * connectivity is active. It means the device is allowed to connect to both primary and
      * secondary cell.
      * @throws IllegalStateException if the Telephony process is not currently available.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @SystemApi
@@ -16408,6 +17160,8 @@
      *
      * @throws IllegalStateException if the Telephony process is not currently available.
      * @throws SecurityException if the caller doesn't have the permission.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      *
      */
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
@@ -16524,6 +17278,9 @@
      *
      * @param capability the name of the capability to check for
      * @return the availability of the capability
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @RequiresFeature(PackageManager.FEATURE_TELEPHONY_RADIO_ACCESS)
     public boolean isRadioInterfaceCapabilitySupported(
@@ -16643,6 +17400,8 @@
      * @throws IllegalArgumentException if the thermalMitigationRequest had invalid parameters or
      * if the device's modem does not support data throttling.
      *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      * @hide
      */
     @SystemApi
@@ -16975,6 +17734,9 @@
      * contain the GBA Ks_NAF/Ks_ext_NAF when available. If the NAF keys are
      * available and valid at the time of call and bootstrapping is not requested,
      * then the callback shall be invoked with the available keys.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
@@ -17073,6 +17835,8 @@
      * @param request the SignalStrengthUpdateRequest to be set into the System
      *
      * @throws IllegalStateException if a new request is set with same subId from the same caller
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
@@ -17103,6 +17867,9 @@
      * @see #setSignalStrengthUpdateRequest(SignalStrengthUpdateRequest)
      *
      * @param request the SignalStrengthUpdateRequest to be cleared from the System
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
@@ -17126,10 +17893,14 @@
      * @return the PhoneCapability which describes the data connection capability of modem.
      * It's used to evaluate possible phone config change, for example from single
      * SIM device to multi-SIM device.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public @NonNull PhoneCapability getPhoneCapability() {
         try {
             ITelephony telephony = getITelephony();
@@ -17194,11 +17965,15 @@
      * at least one SIM card for which the user needs to manually enter the PIN
      * code after the reboot. {@link #PREPARE_UNATTENDED_REBOOT_ERROR} in case
      * of error.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_SUBSCRIPTION}.
      * @hide
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.REBOOT)
     @PrepareUnattendedRebootResult
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)
     public int prepareForUnattendedReboot() {
         try {
             ITelephony service = getITelephony();
@@ -17301,6 +18076,9 @@
      *
      * @param executor the executor on which callback will be invoked.
      * @param callback a callback to receive the current slicing configuration.
+     *
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_RADIO_ACCESS}.
      */
     @RequiresFeature(
             enforcement = "android.telephony.TelephonyManager#isRadioInterfaceCapabilitySupported",
@@ -17382,8 +18160,11 @@
      * @param capability The premium capability to check.
      * @return Whether the given premium capability is available to purchase.
      * @throws SecurityException if the caller does not hold permission READ_BASIC_PHONE_STATE.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      */
     @RequiresPermission(android.Manifest.permission.READ_BASIC_PHONE_STATE)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
     public boolean isPremiumCapabilityAvailableForPurchase(@PremiumCapability int capability) {
         try {
             ITelephony telephony = getITelephony();
@@ -17623,10 +18404,13 @@
      * @param callback The result of the purchase request.
      * @throws SecurityException if the caller does not hold permissions
      *         READ_BASIC_PHONE_STATE or INTERNET.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_DATA}.
      * @see #isPremiumCapabilityAvailableForPurchase(int) to check whether the capability is valid.
      */
     @RequiresPermission(allOf = {android.Manifest.permission.READ_BASIC_PHONE_STATE,
             android.Manifest.permission.INTERNET})
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_DATA)
     public void purchasePremiumCapability(@PremiumCapability int capability,
             @NonNull @CallbackExecutor Executor executor,
             @NonNull @PurchasePremiumCapabilityResult Consumer<Integer> callback) {
@@ -18080,10 +18864,14 @@
      * Get current cell broadcast message identifier ranges.
      *
      * @throws SecurityException if the caller does not have the required permission
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_MESSAGING}.
+     *
      * @hide
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_CELL_BROADCASTS)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_MESSAGING)
     @NonNull
     public List<CellBroadcastIdRange> getCellBroadcastIdRanges() {
         try {
@@ -18237,10 +19025,13 @@
      * the result when the operation completes.
      * @throws SecurityException if the caller does not have the required permission
      * @throws IllegalArgumentException when the ranges are invalid.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_MESSAGING}.
      * @hide
      */
     @SystemApi
     @RequiresPermission(android.Manifest.permission.MODIFY_CELL_BROADCASTS)
+    @RequiresFeature(PackageManager.FEATURE_TELEPHONY_MESSAGING)
     public void setCellBroadcastIdRanges(@NonNull List<CellBroadcastIdRange> ranges,
             @NonNull @CallbackExecutor Executor executor,
             @NonNull Consumer<Integer> callback) {
@@ -18316,7 +19107,8 @@
      * </ul>
      *
      * @return Primary IMEI of type string
-     * @throws UnsupportedOperationException if the radio doesn't support this feature.
+     * @throws UnsupportedOperationException If the device does not have
+     *          {@link PackageManager#FEATURE_TELEPHONY_GSM}.
      * @throws SecurityException if the caller does not have the required permission/privileges
      */
     @NonNull