Change the message for when there is no SIM to be more descriptive.

Currently it says "Can't call", switching to "Cellular network not
available."

Bug: 18590972
Change-Id: Ia3d6b1dcf7cfbbd9c2d9e2ebd319c66da85170cb
diff --git a/src/com/android/services/telephony/TelephonyConnectionService.java b/src/com/android/services/telephony/TelephonyConnectionService.java
index 7ce5005..43f8651 100644
--- a/src/com/android/services/telephony/TelephonyConnectionService.java
+++ b/src/com/android/services/telephony/TelephonyConnectionService.java
@@ -101,7 +101,7 @@
                 Log.d(this, "onCreateOutgoingConnection, phone is null");
                 return Connection.createFailedConnection(
                         DisconnectCauseUtil.toTelecomDisconnectCause(
-                                android.telephony.DisconnectCause.OUTGOING_FAILURE,
+                                android.telephony.DisconnectCause.OUT_OF_SERVICE,
                                 "Phone is null"));
             }
             number = phone.getVoiceMailNumber();
@@ -142,7 +142,7 @@
             Log.d(this, "onCreateOutgoingConnection, phone is null");
             return Connection.createFailedConnection(
                     DisconnectCauseUtil.toTelecomDisconnectCause(
-                            android.telephony.DisconnectCause.OUTGOING_FAILURE, "Phone is null"));
+                            android.telephony.DisconnectCause.OUT_OF_SERVICE, "Phone is null"));
         }
 
         int state = phone.getServiceState().getState();