diff --git a/Classes/LinphoneUI/LinphoneManager.m b/Classes/LinphoneUI/LinphoneManager.m
index be75fb53f..909e1f7eb 100644
--- a/Classes/LinphoneUI/LinphoneManager.m
+++ b/Classes/LinphoneUI/LinphoneManager.m
@@ -204,12 +204,15 @@ extern void libmssilk_init();
 				lMessage=NSLocalizedString(@"Please make sure your device is connected to the internet and double check your SIP account configuration in the settings.",nil);
 			} else {
 				lMessage=[NSString stringWithFormat : NSLocalizedString(@"Cannot call %@",nil),lUserName];
-
 			}
 			
-			if (message!=nil){
-				lMessage=[NSString stringWithFormat : NSLocalizedString(@"%@\nReason was: %s",nil),lMessage, message];
-			}
+            if (linphone_call_get_reason(call) == LinphoneReasonNotFound) {
+                lMessage=[NSString stringWithFormat : NSLocalizedString(@"'%@' not registered to Service",nil), lUserName];
+            } else {
+                if (message!=nil){
+                    lMessage=[NSString stringWithFormat : NSLocalizedString(@"%@\nReason was: %s",nil),lMessage, message];
+                }
+            }
 			lTitle=NSLocalizedString(@"Call failed",nil);
 			
 			UIAlertView* error = [[UIAlertView alloc] initWithTitle:lTitle
diff --git a/submodules/linphone b/submodules/linphone
index 5bf95231b..9140451ac 160000
--- a/submodules/linphone
+++ b/submodules/linphone
@@ -1 +1 @@
-Subproject commit 5bf95231b51641ce095af49a864cf00fa6837750
+Subproject commit 9140451acf5f86f2b14ac1cbfca269148fc6536f