DTMF issue with Cisco Unity Connections.
Scenario 1: Call comes in from SIP PSTN direct (no IOS Gateway) to auto Attendant, customer enters mailbox number, gets transferred to phone. Phone rings 3 times back to mailbox, and no DTMF accepted. (DTMF works initially, and then can't "0" out after call comes back to VoiceMail.
Scenario 2: Same call, but during the transfer call goes directly to mailbox, "0" out works fine. used the #2 when transferring.
Any Ideas? DTMF is set to no preference on both PSTN and Unity Connectiions SIP trunks in CUCM.
