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

[Martin Joseph]

On Mar 1, 2006, at 3:03 PM, asterisk at anime.net wrote:

> 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
>
It's doesn't seem to be  spa3000 specific, as I have seen this same 
behavior in two other FXO's...