[Asterisk-Users] Sending DTMF tones after answering on an IAX channel

[Martin Joseph]

On Nov 9, 2005, at 6:58 AM, Michaël Gaudette wrote:

> Hi,
>
> I'm trying to send some DTMF dialtones (for an extension on the other 
> end).
> My call is done from a Zap channel, to Asterisk, throught an IAX 
> provider,
> to a PSTN line in some university.
>
> The phone number I am trying to reach is 555-555-5555 exten 1234.
>
> What I did is an
> Exten => 201,1,Dial(IAX2/provider/5555555555||D(1234))
>
> Well, that doesn’t work.  The other end doesn’t seem to accept the DTMF
> tones.  Maybe Asterisk is sending them too quickly (how to I put a 
> pause in
> between?)<snip>
It could be that the audio codec you are using is munging the tones 
into an unusable form....