Hello, I have configured the Routers Software MTP for G729 codec with SIP Trunk. I am using RFC2833 (RTP-NTE) DTMF type on the gateway (CUBE). When I configure the "MTP Required" on the SIP Trunk, the DTMFs are not recognized by the UCCX, the call goes directly to operator (UCCX is using default AA Script).
But when I remove the "MTP Required" on the SIP Trunk, so that the calls will be allocated MTP dynamically, the DTMF works fine (UCCX gets the DTMF tones normally). I have also noticed that when the MTP Required is configured on a SIP Trunk, the Routers MTP is allocation/Used and RFC2833 DTMFs are not recognized by the UCCX. But when I remove the MTP Required from the SIP Trunk, the Transcoder is allocated/used dynamically (UCCX does not support RFC2833), and the RFC2833 DTMFs are successfully translated to out of band and UCCX understand them normally. Can anybody explain why is it so?
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