diff --git a/Classes/ChatConversationView.m b/Classes/ChatConversationView.m
index 40293be72..4697488c3 100644
--- a/Classes/ChatConversationView.m
+++ b/Classes/ChatConversationView.m
@@ -166,7 +166,7 @@ static UICompositeViewDescription *compositeDescription = nil;
 }
 
 - (void)callUpdateEvent:(NSNotification *)notif {
-	_callButton.hidden = linphone_core_get_current_call([LinphoneManager getLc]);
+	_callButton.hidden = (linphone_core_get_current_call([LinphoneManager getLc]) != NULL);
 }
 
 - (void)update {
diff --git a/linphone-Info.plist b/linphone-Info.plist
index 3a8542d66..2d0de1edb 100644
--- a/linphone-Info.plist
+++ b/linphone-Info.plist
@@ -53,7 +53,7 @@
 		</dict>
 	</array>
 	<key>CFBundleVersion</key>
-	<string>1</string>
+	<string>2</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>UIApplicationExitsOnSuspend</key>