[asterisk-biz] Asterisk Performance Results

[Trixter aka Bret McDanel]

On 11/16/07, Jim Dalton <jim.dalton at transnexus.com> wrote:
>
>
> > Thank you for publishing this; it's most useful to the
> > Asterisk community. Did you make any measurements of voice
> > quality (jitter, packet loss, subjective listening tests by a
> > human) at high loads? From a brief read at your PDF document,
> > I didn't see anything on this - my apologies if I've missed it.
> >
>
> Very good question and quick reading!  This issue is not addressed in the
> test plan.
>
> To check for voice quality we performed subjective listening test at high
> loads and the quality was good.
>
> We spent some time trying to think of a simple way to quantitatively
> measure
> voice quality during the test, but could not come up with a practical
> solution that was easy and affordable.  We would appreciate any input on
> easy ways to collect voice quality data.



I asked a similar question, not observing this one.  I would suggest some
monitoring tools that will give you an indication of jitter, loss, delay,
etc.  There are many things that will do this, although they all have
different good/bd qualities.  I believe wireshark will, there are other
tools dedicated to RTP traffic analysis.

-- 
Trixter http://www.0xdecafbad.com     Bret McDanel
Belfast +44 28 9099 6461        US +1 516 687 5200
http://www.trxtel.com the phone company that pays you!
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