[Asterisk-Users] DTMF does not work with g729 and AGI

[Alex Vishnev]

First of all I hope you realize you can't have the same context activated at
the same time for the same host as * does not support this. So I am just
thinking the configuration below are just examples of what you tried. I
strongly suggest using dtmfmode=rfc2833 and dtmfmode=info instead of inband.
Inband will only work for g711 as there is no compression. Secondly, I would
suggest looking at your client and configure the client to match * config.
If that does not work, I would capture the data with ethereal and decode the
protocol to see what is happening. Most likely problem is with your client.

Alex

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of
ht at phonitel.com
Sent: Thursday, April 14, 2005 8:11 PM
To: asterisk-users at lists.digium.com
Subject: [Asterisk-Users] DTMF does not work with g729 and AGI

Hello,

I have an AGI script that runs a menu at two levels of a tree.

If I call the extension from a voip phone with g711, the menu works fine and
accepts DTMF no probs.

Then, when I Call from a DID, it sends call using SIP and g729 to¨* box.

The IVR also starts running, but no DTMF is deteced.

I have tried various configs (combinations of dtmfmode=info,
dtmfmode=rfc2833
and dtmfrelax=yes, dtmfrelax=no) with no success. Any hint?

sip.conf

[SS_SIP]
type=peer
host=XXX.XX.XXX.XX
dtmfrelax=no
;dtmfmode=rfc2833
dtmfmode=info
context=outbound
disallow=all
allow=g723.1
allow=g729

[SS_SIP]
type=user
host=XXX.XX.XXX.XX
context=outbound
dtmfmode=inband
disallow=all
allow=g723.1
allow=g729


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