[Asterisk-Users] Sipura SPA-3000 and PSTN dtmf

[asterisk at anime.net]

On Wed, 1 Mar 2006, Arsen Chaloyan wrote:
>> The inbound PSTN DTMF works excellently, e.g. people
>> calling from PSTN
>> into the * box are able to pick IVR items with DTMF
>> reliably.
> exactly!

There are some other problems with DTMF and spa3000. Sometimes the spa3000 
mis-detects remote speaker's voice as DTMF and sends rfc2833 events to 
asterisk.

It's a well known problem: http://voxilla.com/PNphpBB2-viewtopic-t-1054.html

-Dan