[asterisk-users] Asterisk-1.6.1.8 DTMF with SIP is not working

[Ivan Stepaniuk]

Joseph wrote:
> I always had a problem with SIP and DTMF, I'm using old sipura adapters and have one digium iaxy FXS unit which works almost perfectly, never had any problem 
> with DTMF on this unit.
> However, all phones connected to Sipura don't work very well especially when I setup speed dialing numbers to do banking, entering account number etc. 
> (sipura units are set to dtmf=auto) 
>   
DTMF Detection is done at your ATA, asterisk has nothing to do with 
that. Try the different settings on your sipura unit to improve DTMF 
detection, ie: relaxed dtmf, rx/tx gain, impedance. I don't remember 
exaclty but you don't need "auto" if you are certain that your SIP 
endpoint is either info or rfc2833.

-- 
Iván Stepaniuk
Alba Fotónica S. L.
www.albafotonica.com