diff --git a/src/com/android/phone/PhoneInterfaceManager.java b/src/com/android/phone/PhoneInterfaceManager.java
index cbda21b..f3f0a29 100755
--- a/src/com/android/phone/PhoneInterfaceManager.java
+++ b/src/com/android/phone/PhoneInterfaceManager.java
@@ -835,7 +835,9 @@
                 case CMD_GET_MODEM_ACTIVITY_INFO:
                     request = (MainThreadRequest) msg.obj;
                     onCompleted = obtainMessage(EVENT_GET_MODEM_ACTIVITY_INFO_DONE, request);
-                    defaultPhone.getModemActivityInfo(onCompleted, request.workSource);
+                    if (defaultPhone != null) {
+                        defaultPhone.getModemActivityInfo(onCompleted, request.workSource);
+                    }
                     break;
 
                 case EVENT_GET_MODEM_ACTIVITY_INFO_DONE: