diff --git a/src/com/android/services/telephony/domainselection/EmergencyCallDomainSelector.java b/src/com/android/services/telephony/domainselection/EmergencyCallDomainSelector.java
index 4889af8..dfbadfc 100644
--- a/src/com/android/services/telephony/domainselection/EmergencyCallDomainSelector.java
+++ b/src/com/android/services/telephony/domainselection/EmergencyCallDomainSelector.java
@@ -962,6 +962,10 @@
      * @return The network type of the CS network.
      */
     private @RadioAccessNetworkType int getSelectableCsNetworkType() {
+        List<Integer> domains = getDomainPreference();
+        if (domains.indexOf(DOMAIN_CS) == NOT_SUPPORTED) {
+            return UNKNOWN;
+        }
         EmergencyRegResult regResult = mSelectionAttributes.getEmergencyRegResult();
         logi("getSelectableCsNetworkType regResult=" + regResult);
         if (regResult == null) return UNKNOWN;
@@ -1008,6 +1012,10 @@
      * @return The network type if the network supports emergency services over PS network.
      */
     private @RadioAccessNetworkType int getSelectablePsNetworkType(boolean inService) {
+        List<Integer> domains = getDomainPreference();
+        if (domains.indexOf(DOMAIN_PS_3GPP) == NOT_SUPPORTED) {
+            return UNKNOWN;
+        }
         EmergencyRegResult regResult = mSelectionAttributes.getEmergencyRegResult();
         logi("getSelectablePsNetworkType regResult=" + regResult);
         if (regResult == null) return UNKNOWN;
diff --git a/tests/src/com/android/services/telephony/domainselection/EmergencyCallDomainSelectorTest.java b/tests/src/com/android/services/telephony/domainselection/EmergencyCallDomainSelectorTest.java
index 0625b2d..987beb4 100644
--- a/tests/src/com/android/services/telephony/domainselection/EmergencyCallDomainSelectorTest.java
+++ b/tests/src/com/android/services/telephony/domainselection/EmergencyCallDomainSelectorTest.java
@@ -960,6 +960,54 @@
     }
 
     @Test
+    public void testNotSupportPsCombinedImsRegisteredSelectCs() throws Exception {
+        PersistableBundle bundle = getDefaultPersistableBundle();
+        int[] domainPreference = new int[] {
+                CarrierConfigManager.ImsEmergency.DOMAIN_CS
+                };
+        bundle.putIntArray(KEY_EMERGENCY_DOMAIN_PREFERENCE_INT_ARRAY, domainPreference);
+        when(mCarrierConfigManager.getConfigForSubId(anyInt())).thenReturn(bundle);
+
+        createSelector(SLOT_0_SUB_ID);
+        unsolBarringInfoChanged(false);
+
+        EmergencyRegResult regResult = getEmergencyRegResult(EUTRAN, REGISTRATION_STATE_HOME,
+                NetworkRegistrationInfo.DOMAIN_CS | NetworkRegistrationInfo.DOMAIN_PS,
+                true, true, 0, 0, "", "");
+        SelectionAttributes attr = getSelectionAttributes(SLOT_0, SLOT_0_SUB_ID, regResult);
+        mDomainSelector.selectDomain(attr, mTransportSelectorCallback);
+        processAllMessages();
+
+        bindImsService();
+
+        verifyCsDialed();
+    }
+
+    @Test
+    public void testNotSupportCsCombinedImsNotRegisteredSelectPs() throws Exception {
+        PersistableBundle bundle = getDefaultPersistableBundle();
+        int[] domainPreference = new int[] {
+                CarrierConfigManager.ImsEmergency.DOMAIN_PS_3GPP
+                };
+        bundle.putIntArray(KEY_EMERGENCY_DOMAIN_PREFERENCE_INT_ARRAY, domainPreference);
+        when(mCarrierConfigManager.getConfigForSubId(anyInt())).thenReturn(bundle);
+
+        createSelector(SLOT_0_SUB_ID);
+        unsolBarringInfoChanged(false);
+
+        EmergencyRegResult regResult = getEmergencyRegResult(EUTRAN, REGISTRATION_STATE_HOME,
+                NetworkRegistrationInfo.DOMAIN_CS | NetworkRegistrationInfo.DOMAIN_PS,
+                true, true, 0, 0, "", "");
+        SelectionAttributes attr = getSelectionAttributes(SLOT_0, SLOT_0_SUB_ID, regResult);
+        mDomainSelector.selectDomain(attr, mTransportSelectorCallback);
+        processAllMessages();
+
+        bindImsServiceUnregistered();
+
+        verifyPsDialed();
+    }
+
+    @Test
     public void testDefaultEpsImsRegisteredBarredScanPsPreferred() throws Exception {
         createSelector(SLOT_0_SUB_ID);
         unsolBarringInfoChanged(true);