Quote Originally Posted by tritch View Post
It sounds like your ATA may be incorrectly configured for DTMF Inband instead of AUTO. I would open a ticket with support to have them check it out
OK thanks. I did. I understand in-band versus out-of-band/SIP, etc. But whatever setting it has works with other IVRs but not VoIPo's Voice mail server. Odd, eh?

The DTMF method is whatever VoIPo wanted it to be. On other systems, changing to out-of-band caused problems with incompatible signaling systems for some routes or destination PBXes, etc. (I guess SS7 is a goner!).