Im trying to narrow down a few issues with DTMF. While DTMF is working.. it is slow in responding. Any numbered dialed into the system, if you dial fast, it fails, if you dial slow it works.
PSTN----2800/MGCP---CUCM 5.x----SIP trunk-----Conference Bridge
MTP is configured and working on the trunk and MGCP (software only CUCM)
I cant recall if there is something in CUCM to fix this in the services. When we dial from an IP phone, DTMF works fine. Which kind of points to the router.