[asterisk-dev] Sending digits directly to Asterisk using DAHDI during ramal dialing

[Fábio Urquiza]

I'm sorry guy, someone could help me you this ? I still cannot find a way
to solve this problem :(

Thanks in advance,

-Fabio Urquiza

On Wed, Jan 20, 2016 at 5:19 PM, Fábio Urquiza <flus at cesar.org.br> wrote:

> Hi All,
>
> I'm still developing a DAHDI driver to a specific PABX hardware that is
> composed by a Digital Matrix controlled by a DSP. I already have sent a
> message to the list with some questions about DAHDI developing and received
> some very good advices. Now I'm facing a new problem.
>
> In this particular hardware the DSP is responsible for receiving all
> events that happen in all cards. So, for instance, if a ramal connected to
> a FXS card have its phone off hook, the DSP send us a message like the one
> below:
>
> Mbx: [a] Ev: [17],0,1 => Ramal 0 offhook
>
> I understand that my driver need to call something like this when that
> event is generated:
>
> dahdi_hooksig(chan, DAHDI_RXSIG_OFFHOOK);
>
> After that, when digit in the ramal are been pressed, the DSP already does
> the DTMF detection and send us messages like that:
>
> Mbx: [ff] Ev: [dc],0,30 => Digit 0x30 '0' detected
>
> Mbx: [ff] Ev: [dc],0,31 => Digit 0x31 '1' detected
>
>
> Now my driver need to call a function to directly send the detected digits
> to DAHDI. But I looked all *kernel.h* and *dahdi-base.c* and didn't found
> a function to do that.
>
> I imagine that in the normal operation Asterisk will be waiting for the
> tones to do the DTMF itself. There is a way that I can send the digits
> directly using DAHDI API and skip the Asterisk DTMF detection ?
>
> I'm using DAHDI version 2.10.2 and Asterisk version 13.7.0.
>
> Thanks and best regards,
>
> -Fabio Urquiza
>
>
>
>
>
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