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

[asterisk at anime.net]

On Thu, 2 Mar 2006, Vladyslav wrote:
> Just my couple notes on spa3000 and PSTN DTMFs.
> Such schema:
> PSTN <-> SPA3000 <-> Asterisk
>
> Have problems with DTMF detection on incoming calls
> when call comes from cell phone. Once per 4 times it
> misdetect some ditigs (whether first digit will be
> doubled or unrecognized at all).
> Were tried different (5) cell phones (cell phones providers)
> Also support from sipura has no clue.

I gave up on letting the spa3000 do dtmf and just changed everything to 
inband, so asterisk handles it now.

-Dan