I have a Server running C2.3.2 with an AEX2400 card running a IVR with only inbound calls. I have a problem where I’m picking up duplicate DTMF tones from multiple customers i.e they enter 4 and the system picks up 44 or # and we see ##.
Maybe your Asterisk server is experiencing issues with echo. I would suggest that you check your echocancelation configuration in chan_dahdi.conf
Also, If you have relaxdtmf, you may want to disable it
Thank you for responding. relaxdtmf is commented out in zapata.conf and I don’t have a file chan_dahdi.conf however echocancel=yes in the zapata.conf.