[Freeswitch-users] Capturing the Current Call Audio

Sat Sep 12 21:35:46 MSD 2015

I use wireshark to look at the SIP packets or listen to the audio. But I
haven't found a simple script to export e.g. a WAV from the pcap... if
someone finds, please let us know!

-Avi

On Sat, Sep 12, 2015 at 5:25 PM, ik <idokan at gmail.com> wrote:

> It does has the RTP (and RTCP).
> You can export one or more calls to the same file.
>
> On Sat, Sep 12, 2015 at 12:27 AM, Leonardo Lima Ribeiro <
> llribeiro90 at gmail.com> wrote:
>
>> And from the cap file I can get the audio right?
>> I’m taking a look in some scripts that can extract the audio from pcap
>> files, but I think it’s need to be embedded on the pcap file when it’s
>> saving right?
>>
>> I tried the sngrep and it generated a 128k pcap file, and I did about 3
>> calls, does it really have the audio?
>>
>> (I’m about to test pcapsipdump but the installation is failing in OS X, I
>> think I will move to a CentOS machine)
>>
>> Thank you all guys!
>>
>> Em 11/09/2015, à(s) 2:47 PM, ik <idokan at gmail.com> escreveu:
>>
>> I'm using sngrep, it saves a specific dialog to a pcap file, or several
>> dialogs, based on what you select.
>>
>> On Fri, Sep 11, 2015 at 4:58 PM, Aqs Younas <aqsyounas at gmail.com> wrote:
>>
>>> pcapsipdump captures all calls on particular instance into separate
>>> files. You can't make it to capture a specific file.
>>>
>>> On 11 September 2015 at 16:43, Leonardo Ribeiro <llribeiro90 at gmail.com>
>>> wrote:
>>>
>>>> Sorry all, it was my phone auto corrector. Again:
>>>>
>>>> Thanks Avi,
>>>>
>>>> I had read about and I'm going to try that. My IVR is a script on lua,
>>>> do you know how can I call the  pcapsipdump for the current call from there?
>>>>
>>>> I was thinking about another solution... What if I execute a record
>>>> mycall.wav 300 and try to stream this file while is being record? It would
>>>> work? The main problem is that the script calls the execute record as a
>>>> synchronous way, but I would need to do some actions while it's recording
>>>> like play sounds, curl posts etc.
>>>>
>>>> Thank you!
>>>> Em 11/09/2015 08:38, "Leonardo Ribeiro" <llribeiro90 at gmail.com>
>>>> escreveu:
>>>>
>>>>> Thanks Avi,
>>>>>
>>>>> I've readed about and I'm going to try that. My IVR is a script on
>>>>> lua, do you know how can I call the  pcapsipdump for the current call from
>>>>> there?
>>>>>
>>>>> I was thinking Abou another solution, and what if I execute a record
>>>>> mycall.wav 300 and try to stream this file while is being record? It would
>>>>> work? The main problem is that the script calls the execute record as a
>>>>> synchronous way, but I would need to do some actions while it's recording
>>>>> like play sounds, curl posta etc.
>>>>>
>>>>> Thanks you!
>>>>> Em 10/09/2015 23:08, "Avi Marcus" <avi at avimarcus.net> escreveu:
>>>>>
>>>>>> I use pcapsipdump to capture all call SIP + RTP, grouped by call in
>>>>>> PCAP format.
>>>>>>
>>>>>> -Avi
>>>>>>
>>>>>> On Fri, Sep 11, 2015 at 4:36 AM, Leonardo Lima Ribeiro <
>>>>>> llribeiro90 at gmail.com> wrote:
>>>>>>
>>>>>>> Hi!
>>>>>>>
>>>>>>> I’m tying to capture the current call audio but I have no idea on
>>>>>>> how to do that.
>>>>>>>
>>>>>>> My main achievement is to get the current call audio and them stream
>>>>>>> this audio bytes to an API via HTTP Post.
>>>>>>>
>>>>>>> I was doing some tries with mod_shout and mod_vlc, and I was
>>>>>>> successful in the streaming part - I tested some wavs and mp3 files.
>>>>>>>
>>>>>>> But the mainly part is that I need the current call audio, and it
>>>>>>> has no file in the system to stream right?
>>>>>>>
>>>>>>> I was thinking if there’s a command that I can get the audio bytes
>>>>>>> from the current call but I really don’t know, I could not find any option
>>>>>>> like that.
>>>>>>>
>>>>>>> Could you please help me?
>>>>>>>
>>>>>>> Thank you,
>>>>>>> Leonardo Ribeiro
>>>>>>>
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>>>>>>
>>>>>>
>>>>>>
>>>>>> _________________________________________________________________________
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>>>>>>
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>>>>>
>>>>
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>>>
>>>
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>>
>> _________________________________________________________________________
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>> http://www.freeswitchsolutions.com
>>
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>>
>> _________________________________________________________________________
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>> http://www.freeswitchsolutions.com
>>
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>
>
> _________________________________________________________________________
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>
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