[asterisk-users] voipmonitor.org

[Martin Vit]

Hello,

I've choosen only MOS-LQE because it is calculated only on network
parameters, which is loss, burstinnes and delay (which is converted to
loss by jitterbuffer simulator). It does not takes into account voice
(payload). There is no effective objective methods (today) which
predicts MOS. Only ITU-T P.862 and P.563 which is patented and it can
analyze only 20 seconds samples. I've tried implementing P.563 and it
is not usable for real live use, only for automated tests which is not
in my interest now (and because of patents). I've calibrated MOS-LQE
with polynomial functions using P.862 PESQ. I will write more on
voipmonitor.org documentation once I've found more time.

I'm using voipmonitor on central gateway and succesfully monitoring
all SIP traffic and filtering calls by the worst MOS. So yes, you can
use that tool for measuring quality of IP network in realtime. If you
save PCAP files, you can analyze it with wireshark in more depth.





On Sat, May 8, 2010 at 1:42 PM, mosbah abdelkader
<mosbah.abdelkader at gmail.com> wrote:
> Hello,
>
>
> First, thank you for your great job.
>
>
> I want to know why you have choosed to calculate only MOS-LQE. Why you have
> only used G107. Is that model suitable for VoIP operators to have a
> calculated QoS value so they can confirm their quality.
>
>
> Thanks again and best regards.
>