Re: [on-asterisk] Conference bridge

Fri, 27 Feb 2009 08:31:59 -0800 

Rachel,
You could go down the road of using DSP cards but I'm not sure you really need the complexity. What sort of capacity/features are you looking for? When you say media mixing, do you mean things like: -injecting background music, or a prerecorded audio stream into the conference? If so FS can do it. 
   - adjust individual channel  or the conference volume? yup
   - background noise reduction? yup
I've heard of freeswitch handling 500 channels on a standard server box. It has a full feature list. Even sipX is merging freeswitch in, starting with conferencing. http://sipx-wiki.calivia.com/index.php/Conferenceing_Service_for_sipXecs
SipX also has a gui front end to manage the freeswitch conference bridge, so might be a easy way to test it out and it also offers an easy installer which can also configure a high availability system. http://sipx-wiki.calivia.com/index.php/CD_Installation_of_sipXecs 

Mike


Rachel Quin wrote:

Really all I'm looking at is media mixing for call conferencing, I have all
the other puzzle pieces.

Rachel

-----Original Message-----
From: Philip Mullis [mailto:[email protected]] Sent: February 27, 2009 10:44 AM 
To: Rachel Quin
Cc: [email protected]
Subject: Re: [on-asterisk] Conference bridge

Have you looked into Metaswitch?


Rachel Quin wrote:

I'd actually like to reintroduce my question.  I'll start with some
background:


Beanfield Metroconnect is a dark-fibre, lan-ex, and Internet provider for
office buildings in the downtown core.  We have an extensive 10gig

backbone,

two large pops and datacenters in Toronto, and one in NY NY.  We own the
fibre end to end in our core, and we offer business services exclusively.


We are just branching into voice services, and our initial setup is the
following: we're fully redundant with each site having Sylantro for
switching, Convedia media mixers, AS5400-t3 links to Bell, Bell Megalink
circuits for wholesale long distance, top end BSCs, and currently Iperia

for

vmail (though I'd like to build my own solution for that).


I'd like to offer conferencing services, but we can't do anything

completely

amateur hour.  I've heard of someone using four dual core Xeon to process
180 channels, and I had a nice little chuckle ;^)


In thinking back over the problem, I guess I have to look at the actual

DSP

cards, Sharks, TI's, and see what I like, but does anyone have any
experience with any open source software using DSP offload cards?  At this
juncture I'm more worried about H/W support than features.  I'll probably

be

looking at a 16 or 32 core DSP card, but as I said, I've got to do some
shopping.


Any thoughts, suggestions?


Rachel Quin

Beanfield Metroconnect


audace fortuna iuvat
_____ From: Mike Ashton [mailto:[email protected]] Sent: February 27, 2009 9:23 AM 
Cc: [email protected]
Subject: Re: [on-asterisk] Conference bridge


Rachel,

In my opinion freeswitch has the best base conference bride features, no
dependency on hardware or the ztdummy timer and loads more features. For a
comparison of the FS & Asterisk features here is link to a comparison
http://www.freeswitch.org/node/100

Also here is a small article (


http://www.junctionnetworks.com/blog/charlotte/2008/05/21/freeswitch-asteris

k-replacement ) and their rational of picking FS over Asterisk for their
conference bridge product. 
Hope this helps,

Mike
Rachel Quin wrote: 
I want to build a conference bridge using dedicated DSP hardware, running

on
FreeBSD. Does anyone have recomendations on HW/SW? Rachel Quin Beanfield Metroconnect audace fortuna iuvat
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