asterisk users - Jun 2006 - chan-capi and dtmf

Hi List,

I'm having a problem with detecting incoming dtmf tones with chan_capi, 
using an AVM Fritz card. I have set up softdtmf and relaxdtmf, both to 0, 
expecting that the capi module will detect the tones, but it did not. I also 
set both to 1, expecting that the asterisk dsp functions will detect them 
but it did not either.

Can anyone provide any ideas how to overcome this issue?

Esteban

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On Thu, 8 Jun 2006, Esteban Guana-Jarrin wrote:
> Hi List,
> 
> I'm having a problem with detecting incoming dtmf tones with chan_capi,
using
> an AVM Fritz card. I have set up softdtmf and relaxdtmf, both to 0,
expecting
> that the capi module will detect the tones, but it did not. I also set both
to
> 1, expecting that the asterisk dsp functions will detect them but it did
not
> either.
> 
> Can anyone provide any ideas how to overcome this issue?
CAPI itself cannot detect DTMF. If the CAPI card driver reports that it can 
detect DTMF, then chan-capi will activate that function automatically. You 
can verify that when calling tool capiinfo on the shell, but I don't know if
AVM Fritz can do that.

When you set softdtmf/relaxdtmf, then the voice stream is just sent to 
Asterisk for dsp processing. If this does not work, I don't have any idea.

Armin