What you're saying is that if I have 20 active conferences, of 25 G.711 channels each, a generic two dual-core Xeon server can do all the mixing? Four Xeon cores can mix that load, and do everything else? Wow, has anyone got anything like that working? I would love to see it. I mean, our AS5400 fully loaded, with all the DSP card slots occupied, can only handle assembling 675 DS0's. Even our Convedia media server is stuffed full of DSPs.
Rachel ________________________________________ From: Mike Ashton [mailto:[email protected]] Sent: February 27, 2009 11:32 AM To: [email protected] Subject: Re: [on-asterisk] Conference bridge 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 --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] No virus found in this incoming message. 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