We are using an IOS 2811 Router with 12.4.15T8 as H323 Gateway. Further we use an 3rd Party Callcenter conected via SIP Trunk to CUCM 6.1.2-1125.
Incoming Calls on the h323 Gateway connect to the CUCM. The call is routed to a SIP-Tunk.
The RTP only works when an MTP is used because of DTMF Problems.
The SIP-Trunk is configured with RFC 2833 for DTMF relay.
We do not want to use an MTP. What must be configured?