[asterisk-users] Sound quality issue

[Sevana Oy]

Hello,

Can you record audio at different locations on its route? Our experience 
would suggest (of course) using intrusive or non-intrusive perceptual voice 
quality evaluation at different parts of the network to localize the one 
where it drops down.

Best regards,
Sevana Oy

http://www.sevana.fi
http://twitter.com/sevana
----- Original Message ----- 
From: "Cédric Lemarchand" <cedric.lemarchand at ixcore.com>
To: <asterisk-users at lists.digium.com>
Sent: Saturday, January 15, 2011 10:38 PM
Subject: [asterisk-users] Sound quality issue


> Hello,
>
> Our Asterisk runs with multiple remote sites (12 over an MPLS network),
> everything works fine except for the last site we have juste installed.
>
> When VOIP flows comes/goes from/to this site, there are sound quality
> issues, persistent, 100% reproducible, on every call. This is not a
> bandwidth or latency or jitter problem, everything is fine on the network.
> Our MPLS provider does all check on his network equipments, everything
> is fine too, no packets loss recorded on routers's interfaces ect ...
> We have, on our side, check and replace all the VOIP equipments (spare
> rocks), an reduce the configuration to its simpliest (MPLS router <=>
> ethernet cable <=> VOIP equipment), quality problem still there.
>
> I am sure there are RTP packets losses somewhere, except RTP debug in
> the asterisk CLI, how can i determine where the problem come from ?
>
> Any help would be greatly appreciated, thx.
>
> Cédric
>
> --
> _____________________________________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
> New to Asterisk? Join us for a live introductory webinar every Thurs:
>               http://www.asterisk.org/hello
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users