We're having an issue with DTMF reception with UCCX when someone enters a string of digits quickly into the IVR. Usually the entire string is not collected.
We are connected to ITSP via SIP trunk
ITSP
-->
dtmf-relay rtp-nte sip-kpml
<--
CUBE
-->
dtmf-relay rtp-nte sip-kpml
<--
CUCM
In CUCM, SIP trunk has no MTP required, DTMF is set to RFC2833 or OOB
We do not want to enable MTP on SIP trunk
