diff --git a/src/com/android/server/telecom/TelecomServiceImpl.java b/src/com/android/server/telecom/TelecomServiceImpl.java
index 997723b..92565ca 100644
--- a/src/com/android/server/telecom/TelecomServiceImpl.java
+++ b/src/com/android/server/telecom/TelecomServiceImpl.java
@@ -35,6 +35,8 @@
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.content.res.Resources;
+import android.content.pm.ParceledListSlice;
+import android.content.pm.ResolveInfo;
 import android.net.Uri;
 import android.os.Binder;
 import android.os.Build;
@@ -178,19 +180,20 @@
         }
 
         @Override
-        public List<PhoneAccountHandle> getCallCapablePhoneAccounts(
+        public ParceledListSlice<PhoneAccountHandle> getCallCapablePhoneAccounts(
                 boolean includeDisabledAccounts, String callingPackage) {
             try {
                 Log.startSession("TSI.gCCPA");
                 if (!canReadPhoneState(callingPackage, "getDefaultOutgoingPhoneAccount")) {
-                    return Collections.emptyList();
+                    return ParceledListSlice.emptyList();
                 }
                 synchronized (mLock) {
                     final UserHandle callingUserHandle = Binder.getCallingUserHandle();
                     long token = Binder.clearCallingIdentity();
                     try {
-                        return mPhoneAccountRegistrar.getCallCapablePhoneAccounts(null,
-                                includeDisabledAccounts, callingUserHandle);
+                        return new ParceledListSlice<>(
+                                mPhoneAccountRegistrar.getCallCapablePhoneAccounts(null,
+                                includeDisabledAccounts, callingUserHandle));
                     } catch (Exception e) {
                         Log.e(this, e, "getCallCapablePhoneAccounts");
                         throw e;
@@ -204,7 +207,8 @@
         }
 
         @Override
-        public List<PhoneAccountHandle> getSelfManagedPhoneAccounts(String callingPackage) {
+        public ParceledListSlice<PhoneAccountHandle> getSelfManagedPhoneAccounts(
+                String callingPackage) {
             try {
                 Log.startSession("TSI.gSMPA");
                 if (!canReadPhoneState(callingPackage, "Requires READ_PHONE_STATE permission.")) {
@@ -214,8 +218,8 @@
                     final UserHandle callingUserHandle = Binder.getCallingUserHandle();
                     long token = Binder.clearCallingIdentity();
                     try {
-                        return mPhoneAccountRegistrar.getSelfManagedPhoneAccounts(
-                                callingUserHandle);
+                        return new ParceledListSlice<>(mPhoneAccountRegistrar
+                                .getSelfManagedPhoneAccounts(callingUserHandle));
                     } catch (Exception e) {
                         Log.e(this, e, "getSelfManagedPhoneAccounts");
                         throw e;
@@ -228,10 +232,11 @@
             }
         }
 
+
         @Override
-        public List<PhoneAccountHandle> getPhoneAccountsSupportingScheme(String uriScheme,
-                String callingPackage) {
-            try {
+        public ParceledListSlice<PhoneAccountHandle> getPhoneAccountsSupportingScheme(
+                String uriScheme, String callingPackage) {
+             try {
                 Log.startSession("TSI.gPASS");
                 try {
                     enforceModifyPermission(
@@ -239,15 +244,16 @@
                 } catch (SecurityException e) {
                     EventLog.writeEvent(0x534e4554, "62347125", Binder.getCallingUid(),
                             "getPhoneAccountsSupportingScheme: " + callingPackage);
-                    return Collections.emptyList();
+                    return ParceledListSlice.emptyList();
                 }
 
                 synchronized (mLock) {
                     final UserHandle callingUserHandle = Binder.getCallingUserHandle();
                     long token = Binder.clearCallingIdentity();
                     try {
-                        return mPhoneAccountRegistrar.getCallCapablePhoneAccounts(uriScheme, false,
-                                callingUserHandle);
+                        return new ParceledListSlice<>(mPhoneAccountRegistrar
+                                .getCallCapablePhoneAccounts(uriScheme, false,
+                                callingUserHandle));
                     } catch (Exception e) {
                         Log.e(this, e, "getPhoneAccountsSupportingScheme %s", uriScheme);
                         throw e;
@@ -261,7 +267,8 @@
         }
 
         @Override
-        public List<PhoneAccountHandle> getPhoneAccountsForPackage(String packageName) {
+        public ParceledListSlice<PhoneAccountHandle> getPhoneAccountsForPackage(
+                String packageName) {
             //TODO: Deprecate this in S
             try {
                 enforceCallingPackage(packageName);
@@ -284,8 +291,8 @@
                 long token = Binder.clearCallingIdentity();
                 try {
                     Log.startSession("TSI.gPAFP");
-                    return mPhoneAccountRegistrar.getPhoneAccountsForPackage(packageName,
-                            callingUserHandle);
+                    return new ParceledListSlice<>(mPhoneAccountRegistrar
+                            .getPhoneAccountsForPackage(packageName, callingUserHandle));
                 } catch (Exception e) {
                     Log.e(this, e, "getPhoneAccountsForPackage %s", packageName);
                     throw e;
@@ -336,7 +343,7 @@
                 synchronized (mLock) {
                     try {
                         // This list is pre-filtered for the calling user.
-                        return getAllPhoneAccounts().size();
+                        return getAllPhoneAccounts().getList().size();
                     } catch (Exception e) {
                         Log.e(this, e, "getAllPhoneAccountsCount");
                         throw e;
@@ -349,7 +356,7 @@
         }
 
         @Override
-        public List<PhoneAccount> getAllPhoneAccounts() {
+        public ParceledListSlice<PhoneAccount> getAllPhoneAccounts() {
             synchronized (mLock) {
                 try {
                     Log.startSession("TSI.gAPA");
@@ -365,7 +372,8 @@
                     final UserHandle callingUserHandle = Binder.getCallingUserHandle();
                     long token = Binder.clearCallingIdentity();
                     try {
-                        return mPhoneAccountRegistrar.getAllPhoneAccounts(callingUserHandle);
+                        return new ParceledListSlice<>(mPhoneAccountRegistrar
+                                .getAllPhoneAccounts(callingUserHandle));
                     } catch (Exception e) {
                         Log.e(this, e, "getAllPhoneAccounts");
                         throw e;
@@ -379,7 +387,7 @@
         }
 
         @Override
-        public List<PhoneAccountHandle> getAllPhoneAccountHandles() {
+        public ParceledListSlice<PhoneAccountHandle> getAllPhoneAccountHandles() {
             try {
                 Log.startSession("TSI.gAPAH");
                 try {
@@ -395,7 +403,8 @@
                     final UserHandle callingUserHandle = Binder.getCallingUserHandle();
                     long token = Binder.clearCallingIdentity();
                     try {
-                        return mPhoneAccountRegistrar.getAllPhoneAccountHandles(callingUserHandle);
+                        return new ParceledListSlice<>(mPhoneAccountRegistrar
+                                .getAllPhoneAccountHandles(callingUserHandle));
                     } catch (Exception e) {
                         Log.e(this, e, "getAllPhoneAccounts");
                         throw e;
diff --git a/tests/src/com/android/server/telecom/tests/TelecomServiceImplTest.java b/tests/src/com/android/server/telecom/tests/TelecomServiceImplTest.java
index 185cb97..2130121 100644
--- a/tests/src/com/android/server/telecom/tests/TelecomServiceImplTest.java
+++ b/tests/src/com/android/server/telecom/tests/TelecomServiceImplTest.java
@@ -329,9 +329,12 @@
         makeAccountsVisibleToAllUsers(TEL_PA_HANDLE_16, SIP_PA_HANDLE_17);
 
         assertEquals(fullPHList,
-                mTSIBinder.getCallCapablePhoneAccounts(true, DEFAULT_DIALER_PACKAGE));
-        assertEquals(smallPHList,
-                mTSIBinder.getCallCapablePhoneAccounts(false, DEFAULT_DIALER_PACKAGE));
+                mTSIBinder.getCallCapablePhoneAccounts(
+                        true, DEFAULT_DIALER_PACKAGE).getList());
+
+      assertEquals(smallPHList,
+                mTSIBinder.getCallCapablePhoneAccounts(
+                        false, DEFAULT_DIALER_PACKAGE).getList());
     }
 
     @SmallTest
@@ -346,7 +349,7 @@
 
         List<PhoneAccountHandle> result = null;
         try {
-            result = mTSIBinder.getCallCapablePhoneAccounts(true, "");
+            result = mTSIBinder.getCallCapablePhoneAccounts(true, "").getList();
         } catch (SecurityException e) {
             // intended behavior
         }
@@ -374,9 +377,11 @@
         makeAccountsVisibleToAllUsers(TEL_PA_HANDLE_16, SIP_PA_HANDLE_17);
 
         assertEquals(telPHList,
-                mTSIBinder.getPhoneAccountsSupportingScheme("tel", DEFAULT_DIALER_PACKAGE));
+                mTSIBinder.getPhoneAccountsSupportingScheme(
+                        "tel", DEFAULT_DIALER_PACKAGE).getList());
         assertEquals(sipPHList,
-                mTSIBinder.getPhoneAccountsSupportingScheme("sip", DEFAULT_DIALER_PACKAGE));
+                mTSIBinder.getPhoneAccountsSupportingScheme(
+                        "sip", DEFAULT_DIALER_PACKAGE).getList());
     }
 
     @SmallTest
@@ -392,7 +397,7 @@
         makeAccountsVisibleToAllUsers(TEL_PA_HANDLE_16, SIP_PA_HANDLE_17);
         assertEquals(phoneAccountHandleList,
                 mTSIBinder.getPhoneAccountsForPackage(
-                        TEL_PA_HANDLE_16.getComponentName().getPackageName()));
+                        TEL_PA_HANDLE_16.getComponentName().getPackageName()).getList());
     }
 
     @SmallTest
@@ -415,7 +420,7 @@
         when(mFakePhoneAccountRegistrar.getAllPhoneAccounts(any(UserHandle.class)))
                 .thenReturn(phoneAccountList);
 
-        assertEquals(2, mTSIBinder.getAllPhoneAccounts().size());
+        assertEquals(2, mTSIBinder.getAllPhoneAccounts().getList().size());
     }
 
     @SmallTest