[Freeswitch-users] inband DTMF bleeding through

Avi Marcus avi at avimarcus.net
Tue Mar 12 22:24:58 MSK 2013


To listen to the audio:
In wireshark, go to telephony -> voip calls -> *wait a second* -> click
select all -> player -> decode -> check the box for both channels -> play,
to listen to the actual call.

-Avi

On Tue, Mar 12, 2013 at 5:03 PM, Matt Broad <matt at inveroak.com> wrote:

> Hi Avi,
>
> thanks for the tips, wireshark & tcpdump are great!
>
> I have collected the PCAP file after making a call and can see the RTP
> events that show the tones being sent.  How do I now determine if an inband
> tone is also being sent?
>
> thanks
> Matt
>
>
> On 11 March 2013 21:27, Avi Marcus <avi at avimarcus.net> wrote:
>
>> Once you get a PCAP, you can open it up in wireshark.
>> Then, you can put in the filter: rtpevent.
>> That will show you rfc2833 that comes in.
>>
>> Then you can go to telephone -> voip calls -> *wait a second* -> click
>> select all -> player -> decode -> check the box for both channels -> play,
>> to listen to the actual call.
>>
>> -Avi Marcus
>> BestFone
>>
>> On Mon, Mar 11, 2013 at 10:12 PM, Matt Broad <matt at inveroak.com> wrote:
>>
>>> Thanks Steve, thanks nick. Ill take a look at those links :)
>>>
>>> Is there anything in particular I should be looking out for to see if
>>> any inbound is sneaking in?
>>>
>>> Again Thanks for the help
>>> Matt
>>>
>>>
>>> On Monday, 11 March 2013, Nick Vines wrote:
>>>
>>>> This might also help
>>>>
>>>> General Debugging Freeswitch:
>>>> http://wiki.freeswitch.org/wiki/Debugging_Freeswitch
>>>> Packet Capture: http://wiki.freeswitch.org/wiki/Packet_Capture
>>>>
>>>>
>>>> On Mon, Mar 11, 2013 at 10:03 AM, Steven Ayre <steveayre at gmail.com>wrote:
>>>>
>>>>> PCAP is the file format used by packet capturing tools such as
>>>>> tcpdump, Wireshark, tshark (Wireshark's command line tool), ngrep and a
>>>>> host of others.
>>>>>
>>>>> -Steve
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On 11 March 2013 15:21, Matt Broad <matt at inveroak.com> wrote:
>>>>>
>>>>>> Hi Avi
>>>>>>
>>>>>> thanks for your response.
>>>>>>
>>>>>> Sorry I'm quite new to Freeswitch/linux, what is a PCAP?
>>>>>> I was leaning towards it being the carrier as omitting dropt_dtmf
>>>>>> results in the full tone being transmitted. My issue is that I cannot see
>>>>>> how to test is this in fact the case.
>>>>>>
>>>>>> Using the dialplan shown in my original emails and setting the log
>>>>>> level to 7, when making the call I can see the DTMF tones coming in but am
>>>>>> unsure if this is the inband being reported or the out-of band.
>>>>>>
>>>>>> thanks
>>>>>> Matt
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> _________________________________________________________________________
>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>> consulting at freeswitch.org
>>>>>> http://www.freeswitchsolutions.com
>>>>>>
>>>>>> 
>>>>>> 
>>>>>>
>>>>>> Official FreeSWITCH Sites
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>>>>>>
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>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> _________________________________________________________________________
>>>>> Professional FreeSWITCH Consulting Services:
>>>>> consulting at freeswitch.org
>>>>> http://www.freeswitchsolutions.com
>>>>>
>>>>> 
>>>>> 
>>>>>
>>>>> Official FreeSWITCH Sites
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>>>>> http://wiki.freeswitch.org
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>>>>>
>>>>> FreeSWITCH-users mailing list
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>>>>
>>>
>>> --
>>> Thanks
>>> Matt
>>>
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>>
>> _________________________________________________________________________
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>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
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>>
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>
>
> --
> Thanks
> Matt
>
> This email and any attachments to it are confidential and are intended
> solely for the use of the individual to whom it is addressed. Any views or
> opinions expressed are solely those of the author and do not necessarily
> represent those of InverOak Limited.
>
> If you are not the intended recipient of this email, you must neither take
> any action based upon its contents, nor copy or show it to anyone. Please
> contact the sender if you believe you have received this email in error.
>
> This email including any attachments cannot be guaranteed to be 100%
> secure or error-free as information could be intercepted, corrupted, lost,
> destroyed, out-dated, or containing viruses. The sender therefore does not
> accept liability for any errors or omissions in the contents of this
> message which arise as a result of email transmission.
>
> InverOak Limited is a company registered in England & Wales under company
> number 04529594, whose registered address is Old Barn house, 2 Wannions
> Close, Botley, Chesham, Buckinghamshire, HP5 1YA, United Kingdom.
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
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