[Freeswitch-users] Voice quality monitoring via loopback on sip endpoint

jesse chat2jesse at gmail.com
Thu Feb 3 02:19:03 MSK 2011


You can have SIPP UAC plays Rtp , SIPP UAS Echo back , then compare number
of packets.
On Feb 2, 2011 10:34 AM, "David Ponzone" <david.ponzone at ipeva.fr> wrote:
> A common way to test audio quality is to have a device (sipp for instance)
calling your FS and playing a known audio file.
> FS would then record it and then, by comparing the recorded and the
original one and using some signal processing, you can compute a MOSPESQ
figure.
>
> David Ponzone Direction Technique
> email: david.ponzone at ipeva.fr
> tel: 01 74 03 18 97
> gsm: 06 66 98 76 34
>
> Service Client IPeva
> tel: 0811 46 26 26
> www.ipeva.fr - www.ipeva-studio.com
>
> Ce message et toutes les pièces jointes sont confidentiels et établis à
l'intention exclusive de ses destinataires. Toute utilisation ou diffusion
non autorisée est interdite. Tout message électronique est susceptible
d'altération. IPeva décline toute responsabilité au titre de ce message s'il
a été altéré, déformé ou falsifié. Si vous n'êtes pas destinataire de ce
message, merci de le détruire immédiatement et d'avertir l'expéditeur.
>
>
>
>
> Le 02/02/2011 à 19:25, Marc De Corny a écrit :
>
>> Hi all,
>> I am thinking of a way of testing the quality of a voice call.
>>
>> Ideally i would like to create a call from FS with a loopback parameter
that tells phone to answer the call automatically and loopback the RTP. This
is a common functionality in most phoned (for example cisco)
>> The sent and received packets could be compared for jitter, latency and
packet loss and a result extracted.
>>
>> Does this already exist? I know there some specific tool that accomplish
this bit they are expensive and awkward to use. Starting and retrieving the
result from an api would be fantastic.
>>
>> Any ideas are welcome.
>> Thanks
>> Marc
>> _______________________________________________
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.freeswitch.org/pipermail/freeswitch-users/attachments/20110202/02debec3/attachment.html 


More information about the FreeSWITCH-users mailing list