Ah ... you'd like to have a call progress detection. 

I used spandsp.  First, you have to analyze the tones to get the freqs. Define and configure the frequencies in conf/autoload_configs/spandsp.conf.xml. In my case, I define <descriptor name="63">

In your dialplan (ex. outbound), include the ff lines before the bridge app:

<action application="set" data="bridge_pre_execute_bleg_app=tone_detect"/>

<action application="set" data="bridge_pre_execute_bleg_data=63"/>  <!-- the descriptor name -->

For an inbound call, do the same but change bleg to aleg.

I hope it works with your setup. Cheers!

/Nandy

On Sat, Jun 6, 2015 at 3:51 AM, Naveen Tamanam <naveen32india@gmail.com> wrote:

​

Hi Nandy,

I am glad to see your reply. I am trying to detect the tone which sounds like a simple ring.

and I can't guess when that could occur, so I listen for the tone through out the call. I am attaching the tone.

On Thu, Jun 4, 2015 at 10:39 AM, Nandy Dagondon <nandy1925@gmail.com> wrote:

Hi,

What are you trying to do with tone_detect? Is it call progress? Fax detect?

/Nandy

On Tue, May 19, 2015 at 4:55 AM, Naveen Tamanam <naveen32india@gmail.com> wrote:

Hi,

I am using following command for tone detection,

tone_detect <uuid> <key> <tone_spec> [<flags> <timeout> <app> <args>] <hits>

Many times I end with the false detection. In my case  I haven't given all optional args.

I just gave   tone_detect uuid  key tone_specs. It would be something like,

tone_detect  8582g3b8-f7db-10e4-2ac4-c01885c1ffd3  tone_name frp1,frp2,frp3

 

Where frp1, frp2 and frp3 are the frequencies of  few peak amplitudes of the tone.

Those frequencies are detected through audacity by plotting spectrum, 

Spectrum specs are,

    Alogorithm: Spectrum,

    Fuction: Hanning window  or Bartlett window

    Size: 512

    Axis: Log Frequencies

Is there anything I am missing. Any suggestions are highly appreciated, Thanks.

   

--

Thanks & Regards,
Naveen Tamanam

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Thanks & Regards,
Naveen Tamanam

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