[asterisk-users] Sipgate > DTMF not detected

Tue Jan 12 09:37:44 CST 2010

On Mon, Jan 11, 2010 at 12:19 PM, Steve Howes <steve-lists at geekinter.net> wrote:
>
>
> Codec? I've had 2833 do funny things with anything other than a/ulaw
> (might just be me though..)
>
> S
>
> --

Codecs other than G711u/a don't support inband DTMF.  Seeing as INFO
is rarely used that pretty much leaves RFC2833.  Turn on SIP debugging
and look in the INVITE from the provider for telephone-event.  If you
see it, they're configured to use RFC2833.

If they are, you need to do a packet capture or other RTP debug to see
the out of band RFC2833 events.

-- 
Kristian Kielhofner
http://www.astlinux.org
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