[Asterisk-Users] meetme and dtmf

[Imran Ahmed]

> AFAIK there's no DTMF option in IAX2...
>
> "IAX always sends DTMF inline, eliminating the confusion often found with
> SIP."
> <http://www.voip-info.org/wiki-IAX>

Even though no IAX client supports inband dtmf, An IAX client can send
inband dtmf which would have corrected your problem.
The problem here is with the meetme application when dealing with non
zaptel channels it does not have a mechanism to enable dtmf to pass
through the conference unless dtmf is inband (i.e. part of the audio
stream).
The following are the solutions
a) Use a SIP phone with inband dtmf (No guarantee this will work either)
b) Modify meetme to broadcast dtmf to all channels in conference( All
channels will work in this case).

Imran