[Freeswitch-users] FreeTDM disconnect supervision

[Michael Collins]

Generating a tone w/ cadence is a piece of cake. *Detecting* a tone and
cadence is a bit trickier. Nothing in FreeTDM (that I'm aware of) can detect
both tone *and* cadence, which is why it works great in the US (which uses a
combination of tones) as opposed to Mexico (which uses, I think 425Hz for
everything).

I'd ask Moises Silva if there's any plans to add the cadence detection.

-MC

On Mon, Apr 18, 2011 at 4:27 PM, Luis F Urrea <lfurrea at gmail.com> wrote:

> Yes guru,
>
> The point is that using tone_detect I am not able to specify cadence
> either.
>
> I need to be able to detect a tone that plays 450Hz for 330ms and then
> silence for 330ms.
>
> Strange thing is that on tones.conf generate tones do seem to specify
> cadence such as US busy
>
> v=-7;(500,500,420,680)
>
> I would interpret 420Hz for .5s and 680Hz for .5s
>
> Is that how it is to be interpreted??
>
>
> TIA
>
>
> On Mon, Apr 18, 2011 at 4:48 PM, guru singh <grsingh750 at gmail.com> wrote:
>
>> Hi Luis,
>>
>> You could try the dialplan application tone_detect to detect the busy
>> tone and hangup.
>> http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_tone_detect
>>
>> guru
>>
>> On Tue, Apr 19, 2011 at 3:34 AM, Luis F Urrea <lfurrea at gmail.com> wrote:
>> > Hello,
>> > According to what I have found in regards the tones used for signaling
>> on
>> > FreeTDM, it seems that anything set through DAHDI is ignored and specs
>> from
>> > tones.conf are used instead.
>> > However I have not been able to properly detect a busy tone to be able
>> to
>> > set an FXO back on hook once a busy tone is sniffed.
>> > tones.conf has the following references for busy tones [us]:
>> > generate-busy => v=-7;%(500,500,480,620)
>> > detect-busy=> 480,620
>> > I would like to know if detect-busy takes into account the time frame
>> that
>> > the frequencies are on (played) or off (not being played) and if there
>> is
>> > somehow a way to specify this. Is there any default value for time on
>> and
>> > time off?
>> > I appreciate your help!
>> > Regards
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