diff --git a/telephony/java/android/telephony/ims/aidl/SipDelegateAidlWrapper.java b/telephony/java/android/telephony/ims/aidl/SipDelegateAidlWrapper.java
index 493ad5e473a53..1ccb4645a6993 100644
--- a/telephony/java/android/telephony/ims/aidl/SipDelegateAidlWrapper.java
+++ b/telephony/java/android/telephony/ims/aidl/SipDelegateAidlWrapper.java
@@ -48,6 +48,9 @@ public class SipDelegateAidlWrapper implements DelegateStateCallback, DelegateMe
         @Override
         public void sendMessage(SipMessage sipMessage, long configVersion) {
             SipDelegate d = mDelegate;
+            if (d == null) {
+                return;
+            }
             final long token = Binder.clearCallingIdentity();
             try {
                 mExecutor.execute(() -> d.sendMessage(sipMessage, configVersion));
@@ -59,6 +62,9 @@ public class SipDelegateAidlWrapper implements DelegateStateCallback, DelegateMe
         @Override
         public void notifyMessageReceived(String viaTransactionId)  {
             SipDelegate d = mDelegate;
+            if (d == null) {
+                return;
+            }
             final long token = Binder.clearCallingIdentity();
             try {
                 mExecutor.execute(() -> d.notifyMessageReceived(viaTransactionId));
@@ -71,6 +77,9 @@ public class SipDelegateAidlWrapper implements DelegateStateCallback, DelegateMe
         @Override
         public void notifyMessageReceiveError(String viaTransactionId, int reason) {
             SipDelegate d = mDelegate;
+            if (d == null) {
+                return;
+            }
             final long token = Binder.clearCallingIdentity();
             try {
                 mExecutor.execute(() -> d.notifyMessageReceiveError(viaTransactionId, reason));
@@ -83,6 +92,9 @@ public class SipDelegateAidlWrapper implements DelegateStateCallback, DelegateMe
         @Override
         public void cleanupSession(String callId)  {
             SipDelegate d = mDelegate;
+            if (d == null) {
+                return;
+            }
             final long token = Binder.clearCallingIdentity();
             try {
                 mExecutor.execute(() -> d.cleanupSession(callId));