[Asterisk-Dev] Re: Maximum Meetme size?

[Tony Mountifield]

In article <20051013125441.GO15828 at xorcom.com>,
Tzafrir Cohen <tzafrir.cohen at xorcom.com> wrote:
> On Thu, Oct 13, 2005 at 11:42:41AM +0000, Tony Mountifield wrote:
> > I've been doing some tests with larger conferences in MeetMe, using VoIP
> > channels, and have found that the audio starts to degrade after around
> > 10 participants, and becomes unintelligible before reaching 20 participants.
> > The output of "top" shows the CPU is still 98% idle, so it is not running
> > out of grunt.
> > 
> > I have noticed though that quailty is fine if I have the 20 VoIP calls
> > distributed among several different conference rooms with only a few
> > participants in each.
> > 
> > I'm currently using OH323 as the VoIP interface. For testing, I am
> > originating a whole bunch of calls from another server, which for each
> > channel records everything it hears until hangup. I am called into the
> > conference myself and am talking while performing the test.
> 
> Why won't you take voip out of the picture?

I can do, but the original problem I was testing for was to do with an
interaction between the OH323 channel driver and MeetMe. It was while
testing that I discovered this rapid degradation.

> Create a simple extension that Answer-s and later does nothing (or waits
> forever, or with a timeout), and make it participate in the conference 
> using a call file or the manager interface. Make a conference with one 
> or two real participants and as many faked participants as you like, and 
> see what happens.

Yes, in fact instead of doing nothing, I have the dial plan for such an
extension execute a Record into a wav file, so I can listen the the audio
quailty afterwards.

Cheers
Tony
-- 
Tony Mountifield
Work: tony at softins.co.uk - http://www.softins.co.uk
Play: tony at mountifield.org - http://tony.mountifield.org