We have a problem with our ip phones registered to CallManager 5.1(3). We can't hear the outside line tone after pressing "9". Users are able to hear it after pressing the second or third digit.
I run the Route Plan Report to check for extensions that starts with "9" but there's none. However, the report shows Route Patterns like "9.XXXXXXX" used for local calls, etc. Also, route pattern "900.!" that is used for international dialing.