@voiceops.org
Subject: [VoiceOps] ATT Cellular - DTMF
I've got an odd problem that someone might be able to point me in the
right direction to get some help.
ATT cellular customer calls a number destined to our LRN. Customer
presses a digit on the phone, no DTMF audio ever comes across the trunk
24, 2015 12:24 PM
To: Paul Timmins
Cc: voiceops@voiceops.org
Subject: Re: [VoiceOps] ATT Cellular - DTMF
Thanks Paul, I forgot to mention that we have no trouble with audio. The
audio is good in both directions for the entire length of the call.
From: Paul Timmins [mailto:p...@timmins.net
] ATT Cellular - DTMF
ATT doesn't (reliably) pass two way audio until the call supervises. I had a
customer with this issue before and they were sending a proceeding (technically
a 183 with SDP because they were SIP) and playing a menu recording, and not
sending the supervisory message
I've got an odd problem that someone might be able to point me in the
right direction to get some help.
ATT cellular customer calls a number destined to our LRN. Customer
presses a digit on the phone, no DTMF audio ever comes across the trunk.
If that same customer calls a number with the
ATT doesn't (reliably) pass two way audio until the call supervises. I had a
customer with this issue before and they were sending a proceeding (technically
a 183 with SDP because they were SIP) and playing a menu recording, and not
sending the supervisory message (in their case a 200 ok) until
