[SR-Users] Packet loss / Jitter / Latency issues

dotnetdub dotnetdub at gmail.com
Sun Feb 2 12:31:52 CET 2014


Hi Wingsravi,

You've answered your own question at the end..

20-30% packet loss is what is causing your issue. If you solve this
your issues will go away.

This really is nothing to do with the software running at your proxy.

Regards
Brian


On 2 February 2014 05:11, Wingsravi R <wingsravi777 at gmail.com> wrote:
> Dear Daniel and Kamailio'ns
>
> Greetings,
>
> I am working on kamailio server (4.0.x),whicch is integreted with
> media-proxy server (2.5.2) and it is all working fine in the point of SIP
> functionality.
>
> And i have a set-up like this below, with this when the calls (audio/video)
> sessions started i am experiencing  latency,jitter, echo's in audio calls
> and a choppy ,pixelled video :
>
>
>
> KAMAILIO
>
> |
>                                 Android SIP client (IMSDroid) ---- Wi-Fi
> router ---- Switch (level 2) ---- Wi-Fi router ---- Android SIP client
> (IMSDroid)
>
> (Total set-up runs on Intranet infrastructure).
>
> When i call between two SIP clients, Calls are getting established
> successfully and RTP flow is also relaying using Media-proxy server. But the
> audio/video performnce is not good enough. I am experiencing all this
> Latency , jitter , Choppy pixelled video.
>
> How can i resolve all this issues? What could be the problem ?
>
> Ofcourse SIP proxy is not responsible all this problems (as i know ), But is
> there anything  can be done on Media-proxy server ? Or anything Buffer
> settings can be done on Kamailio server side (or anything else) ?
> Even i changed Shared memory and Package memories to 512MB and 16MB
> respectively.
>
> Anybody can guess what may be the problems that causes these issues ?
>
> PS: When i tried 'ping' Clients IP addresses in Kamailio server PC, there is
> 20-30% packet loss also.
>
> Please help me in resolving these issues.
>
>
> Any help will greatly appreciate.
>
> Regards,
> Ravi.
>
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