I have a customer with an XTS that yesterday if a call is transfered by an ext or the auto attendant it rings the phone but does not forward to VM. If an ext is called it will forward to vm. On busy transfered calls will forward. This just started happening yesterday afternoon.

Tried reseting XTS system and VM. Unprogrammed station preset forwards and reprogrammed. Also removed and put back clips on digitals ports connected to VM.

Any ideas