[Asterisk-Users] MEETME core uses ulaw?

[mattf]

Look at the app_conference description on the wiki:
http://www.voip-info.org/tiki-index.php?page=Asterisk%20app_conference

I believe it does what you want to do, but I really don't know if it works
with CVS_HEAD or stable releases. I'd be curious to hear how it affects
performance as well.

MATT---

-----Original Message-----
From: Dan Morin [mailto:DMorin at ABBCOInc.com]
Sent: Wednesday, May 04, 2005 1:03 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [Asterisk-Users] MEETME core uses ulaw?


So no one has any ideas about how to get MeetMe to work with a codec other
than ulaw?
 
Is anyone successfully doing it?
 



From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Dan Morin
Sent: Tuesday, May 03, 2005 10:26 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [Asterisk-Users] MOH Core uses ulaw...
 
I'm trying to get Asterisk setup as a conference bridge.  When I originally
tried MeetMe, I was using GSM and as the conference got longer, the delay
got worse and worse.  From my research, I assumed that it was because MeetMe
uses ulaw at its core, so everything is getting transcoded twice and each
instant adds more and more delay to the cycle.  To test this, I changed all
of my connections to ulaw and now I get very minimal delay.
 
However, this is not acceptable for me.  I'm anticipating most of my meeting
attendees to come in over my VoIP connection and if this voip line is using
ulaw, it will significantly reduce the number of simultaneous users that my
internet connection can handle.
 
So, it seems to me that I need to change the core codec of MeetMe to
something like GSM so that I can get OK call quality, while getting the most
out of my Internet connection.  Does anyone know how to do this?  Am I on
the right track or way off with this one?
 
Is anyone using MeetMe with GSM or any other non ulaw codec and not having a
problem? 
 
Also (sorry so many questions) I'm not thrilled with GSM or iLBC.  I know
there are a lot of people who like G.729...what are the costs involved with
using this one?
 
Thanks in advance.
Dan