[Freeswitch-users] advise to troubleshoot a call

Wed Apr 24 14:47:45 MSD 2013

Are you sure that there are no peer to peer or other network programs
competing for outbound bandwidth when she is talking?  Does your router
have any way of prioritizing SIP and RTP or penalizing other protocols?

Sent from my iPhone

On 24/04/2013, at 00:43, Michael Collins <msc at freeswitch.org> 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
>>
>> _________________________________________________________________________
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>> 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

 _________________________________________________________________________
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