[asterisk-users] large scale paging

[Jeff LaCoursiere]

On Fri, 5 Feb 2010, Mark Willis wrote:

> Has anyone done any large scale intercom deployments with Asterisk? I've
> been asked about building a system to one-way page 500 phones
> simultaneously from a single server.
>
> My concerns are:
>
> - My limited math capabilities suggest 41 Mbps of RTP traffic, which
> seems like a lot, plus asterisk would be taking a single input stream
> and exploding it out to 500 endpoints.

How did you get that number?  Even with ulaw @ 64Kbps you theoretically 
get 32Mbps.  If you used G.729 you would cut that down to 4 or 5Mbps. 
Totally oversimplified, but that seems a lot more doable.

> - There are 500 near-simultaneous INVITEs being sent. Can the SIP
> channel handle that?
>

I can't say I have ever pushed that hard, but that doesn't sound like it 
would be difficult to handle.  There are plenty claiming they have 400 
simultaneous two way conversations going on a single box.

j

> Any suggestions or war stories are appreciated.
>
> Mark Willis
> Cartama Consulting LLC
> 210 698 5097
>
>
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