[Asterisk-Users] meetme and dtmf

[Imran Ahmed]

On 2/1/06, Kevin P. Fleming <kpfleming at digium.com> wrote:
> Imran Ahmed wrote:
>
> > Even though no IAX client supports inband dtmf, An IAX client can send
> > inband dtmf which would have corrected your problem.
>
> No, it won't. No IAX2 client will start a DSP to listen for inband DTMF,
> because IAX2 is defined to always send out-of-band DTMF.
>
> At best, if the receiving IAX2 system is just passing the audio along to
> another protocol that does support inband DTMF, then sending it in the
> audio stream would work. If the application receiving the DTMF is on the
> other IAX2 end, though (like MeetMe in this case), then it will never
> 'see' the DTMF, because Asterisk will not look in the audio stream for DTMF.

I agree, but the other ends of the conference were zap channels in
this case, at least that is what I figured by the first email.

Imran.