[asterisk-users] Asterisk not reading fast DTMFs, was: PBX -> PRI -> * -> Telco not working

[Brent Davidson]

Mikel Lindsaar wrote:
>
>
> This must be how the Telco actually managed to router the call. 
>  Because it must go 'pri signaled digits first, inband second'. 
>  Because if you take the pri signal digits (which we assume are the 
> first three) and put them at the start, you can see the number, all in 
> the correct sequence.
>
> Thanks for this idea, I'm going to send it off to Digium and get it 
> added to the ticket.
>
> Mikel
>

It could also be possible that the NEC eventually sends the remaining 
digits via PRI signalling, but at that point Asterisk has already hit a 
pattern match with the inband + interleaved signaled digits so asterisk 
never sees the remaining signaled digits.

If we had a DTMF= setting for zap channels like we do for sip, you could 
just turn off Asterisk's inband dtmf processing for the PRI to the NEC.


-Brent