No, that flexibility is exactly what I'm looking for, but you simply can't mix that many G.711 channels in Xeon cores.
My question is, does anyone know of any open source software that will utilize DSP cards for the actual voice stream crunching of G.711 channels? All of the signalling and management function would be in the software running on the host hardware. Every Telco grade media mixer does this, every edge T3 or OC gateway. Can FreeSwitch or Asterisk do all the conferencing work, using DSP hardware offloading? Rachel ________________________________________ From: Mike Ashton [mailto:[email protected]] Sent: February 27, 2009 12:03 PM Cc: [email protected] Subject: Re: [on-asterisk] Conference bridge Rachel, I think you may have a misconception of what Asterisk ad/or FreeSwitch are. They are really telephony/media software platforms that can be configured to do many things. The most frequent uses are as full blown PBX phone systems, but they can be used strictly as, a VM platform, an IVR application server, media gateways, etc..... Mike Rachel Quin wrote: I think I'm not making myself clear, sorry. Our t3's and Megalink circuit from Bell come into AS5400's. Our VoIP infrastructure is entirely SIP. A conferencing server would only handle RTP streams, mixing channels for many large-ish volume conferences. The box I'm talking about would have 2 10gig nics, one or two DSP cards, and whatever software is needed to handle managing conferencing and directing RTP/G.711 content channels to and from the DSP card(s). I am not looking to build a stand alone phone system. Rachel -----Original Message----- From: Philip Mullis [mailto:[email protected]] Sent: February 27, 2009 11:21 AM To: Rachel Quin Cc: [email protected] Subject: Re: [on-asterisk] Conference bridge asterisk does work well and you can stick 2 cards (8 pris worth of cards to a beefy server) but really no more. for larger scale conferencing on a single box you really need something larger. 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. Checked by AVG - www.avg.com Version: 8.0.237 / Virus Database: 270.11.3/1971 - Release Date: 02/27/09 07:05:00 No virus found in this incoming message. 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