[Freeswitch-users] advise to troubleshoot a call

Michael Collins msc at freeswitch.org
Thu Apr 25 21:15:16 MSD 2013


On Wed, Apr 24, 2013 at 6:05 PM, Philippe Le Toquin <philippe at ppmt.org>wrote:

>  OK I installed pcapsipdump but it is killing my poor Guruplug.
>
> CPU is at 99% so the call are going through but there is a big delay. So
> it is not going to help!
>
Bummer!

>
> What bugs is that up to 2/3 weeks ago everything was fine and suddenly the
> cutout started.
> I can't find out what can have change that would cause this.
>
This is why I mentioned in another thread that I would like to get people
more familiar with git bisect. You can manually use git bisect to find out
which commit broke things for you. Check out Mitch Capper's handy wiki
entry:
http://wiki.freeswitch.org/wiki/Git_Tips#Git_Bisect_-_Tracking_down_breaks_and_bugs_extremely_fast_with_git

-MC

>
> /Philippe
>
> On 13-04-23 11:41 PM, Michael Collins wrote:
>
>   pcapsipdump ftw!
>
>  Check it out:
> http://wiki.freeswitch.org/wiki/Packet_Capture#pcapsipdump
>
>  It gets pcaps for you and separates each call into its own file with both
> signaling and media. Find the pcap with a bad phone call and open that one
> up in Wireshark for analysis.
>
>  -MC
>
>
> On Tue, Apr 23, 2013 at 6:30 PM, Philippe Le Toquin <philippe at ppmt.org>wrote:
>
>>  Hi Sean and Michel
>>
>> Thanks for your input.
>>
>> I did try the test and they came back as all good saying I should get
>> good quality (my link 10Mbps download, 1Mbps upload)
>> The MOS score is reported as 4.2
>>
>> What I didn't find is what you mention about 1, 3 or 5 lines.
>>
>> I will continue looking...
>>
>>
>> On 13-04-23 05:45 PM, Michel Brabants wrote:
>>
>> RTCP provides you normally with statistics that can help you. I didn't
>> check it in freeswitch yet, but there is an option to enable it (not
>> standard apparently?) in the profile. One step further is rtcp-xr which can
>> provide mos-score, but with all of this, the receiving endpoint should also
>> support this.
>>
>> Kind regards,
>>
>> Michel
>>
>> On Tue, Apr 23, 2013 at 10:51 PM, Sean Devoy <sdevoy at bizfocused.com>wrote:
>>
>>>  Philippe,
>>>
>>> The audio is sent through UDP packets, not TCP packets.  The main
>>> difference is that if UDP packets are lost in collisions or congestion,
>>> they are not retransmitted.  What you are describing COULD be completely
>>> explained as internet congestion.
>>>
>>>
>>>
>>> I would test with some application that loads her network link down.
>>> One example is http://www.onsip.com/tools/voip-test
>>>
>>>
>>>
>>> Try the various levels (1 line, 3 or 5 lines) and see how a call with
>>> her reacts when the test are run.  That will at a minimum rule out
>>> congestion on her local internet connection.
>>>
>>>
>>>
>>> HTH,
>>>
>>> Sean
>>>
>>>
>>>
>>> *From:* freeswitch-users-bounces at lists.freeswitch.org [mailto:
>>> freeswitch-users-bounces at lists.freeswitch.org] *On Behalf Of *Philippe
>>> Le Toquin
>>> *Sent:* Tuesday, April 23, 2013 4:12 PM
>>> *To:* FreeSWITCH Users Help
>>> *Subject:* [Freeswitch-users] advise to troubleshoot a call
>>>
>>>
>>>
>>> Hello,
>>>
>>> Recently I (well my wife) is having voice problem when she is on a call.
>>>
>>> Typically  she can hear people but they can't
>>>
>>> The problem is that it is not all the time and when it happens it last a
>>> few seconds then all back to normal... then later on it happens again.
>>>
>>> I am still in the process of trying to find if there is a pattern in the
>>> problem but I would like to be able to look at the log from FS.
>>>
>>> What would you recommend to be able to look at the log (what debug
>>> level).
>>>
>>> Any tips to make it easier to identify an issue in the log (like message
>>> to look for?)
>>>
>>>
>>>
>>> Thanks
>>>
>>> Philippe
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> 
>>> 
>>>
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>>>
>>
>>
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>>
>>
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>>
>> 
>> 
>>
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>>
>
>
> --
> Michael S Collins
> Twitter: @mercutioviz
> http://www.FreeSWITCH.org
> http://www.ClueCon.com
> http://www.OSTAG.org
>
>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:consulting at freeswitch.orghttp://www.freeswitchsolutions.com
>
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>
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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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>
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-- 
Michael S Collins
Twitter: @mercutioviz
http://www.FreeSWITCH.org
http://www.ClueCon.com
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