[chan-capi-users] Garbled playback to BRI

[Armin Schindler]

On Mon, 18 Jan 2010, Jim Hickstein wrote:
>>>  SIP <-> BRI           Good
>>>  Playback(gsm) -> SIP  Good
>>>  Playback(gsm) -> BRI  Scratchy
>>>  Playback(ulaw) -> BRI Scratchy
>>
>> Did you set the config [in capi.conf] to ulaw (default is alaw)?
>
> Yes.
>
>> If you use allow=ulaw in capi.conf, please try without it to
>> disable vocoder.
>
> YESS!!!  That works, for both ulaw and gsm sound files!  I just commented out
> "allow=" entirely.  Thank you, thank you!
>
> I don't completely understand it, but that's OK.  If you want to explain it for
> the list, I will listen patiently. :-)

I cannot really explain. vocoder is a feature of the diva firmware.
To access this feature, Dialogic added the patch to chan_capi.
So we need to ask Dialogic.

Armin