diff --git a/src/com/android/phone/PhoneInterfaceManager.java b/src/com/android/phone/PhoneInterfaceManager.java
index 011d041..fd5e97f 100644
--- a/src/com/android/phone/PhoneInterfaceManager.java
+++ b/src/com/android/phone/PhoneInterfaceManager.java
@@ -2468,6 +2468,20 @@
                 ? getDefaultPhone() : getPhone(subId);
     }
 
+    /**
+     * Get phone object associated with a subscription.
+     * Return default phone if phone object associated with subscription is null
+     * @param subId - subscriptionId
+     * @return phone object associated with a subscription or default phone if null.
+     */
+    private Phone getPhoneFromSubIdOrDefault(int subId) {
+        Phone phone = getPhoneFromSubId(subId);
+        if (phone == null) {
+            phone = getDefaultPhone();
+        }
+        return phone;
+    }
+
     @Nullable
     private UiccPort getUiccPortFromRequest(@NonNull MainThreadRequest request) {
         Phone phone = getPhoneFromRequest(request);
@@ -11698,7 +11712,8 @@
             boolean updateIfNeeded) {
         enforceInteractAcrossUsersPermission("getDefaultRespondViaMessageApplication");
 
-        Context context = getPhone(subId).getContext();
+        Context context = getPhoneFromSubIdOrDefault(subId).getContext();
+
         UserHandle userHandle = null;
         final long identity = Binder.clearCallingIdentity();
         try {