[asterisk-users] Voice quality assessment in Asterisk

[Sevana Oy]

One quick clarification please... With Fluke ACEs you measure MOS according 
G.107, E-model, right?

Thanks a lot to all who replied and will reply!

----- Original Message ----- 
From: "Daniel Tryba" <daniel at tryba.nl>
To: "Asterisk Users Mailing List - Non-Commercial Discussion" 
<asterisk-users at lists.digium.com>
Sent: Friday, October 08, 2010 4:41 PM
Subject: Re: [asterisk-users] Voice quality assessment in Asterisk


> On Fri, Oct 08, 2010 at 02:24:11PM +0200, Bert Van Kets wrote:
>>  The professional way is to do a series of test calls, play a reference
>> file and record the audio at the incoming side. You then use both files
>> to calculate a MOS score. This method is used by telco's to do quality
>> checks.
>
> Take a look at the website mentioned in GPs post. He/they already know
> this, I guess it is a fishing expedition for competitors :)
>
> We don't do the test calls method, but use inline probes (Fluke ACEs)
> that analyze all traffic and give a MOS score to SIP calls and save
> network statistics per call (can be retrieved from the RTCP reports in
> asterisk). These probes and the analyzer software aren't bug free and
> perfect but give a good indication of all historic calls. Once a problem
> is spotted we move to test calls to trace the problem.
>
> -- 
>
>   Daniel Tryba
>
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