[asterisk-users] Replacing PBX with Asterisk, need feedback on my new architecture.

[Kevin P. Fleming]

On 05/06/2012 01:39 PM, Paul Belanger wrote:
>>
> 800 SIP phones on one server? I wouldn't want to do it. Add a SIP proxy
> to your design and have it handle all your SIP.  Then you can load
> balance across multiple asterisk boxes.  You'll be thankful you did this
> at the start, as it will allow you to increase resources more easily.

As has already been pointed out by others in this thread, 800 phones on 
a single Asterisk server (using Asterisk 1.8.x or later and a decent 
spec server) is really no problem. If all of those phones are going to 
be subscribing to hints for a dozen or more of the other phones, then 
yes, that could be an issue, as the amount of NOTIFY traffic would be 
quite high... but for registration and normal calling, even if all these 
phones were in use at once, I would not expect any issues at all due to 
performance.

The other comments about being able to take down a server for 
maintenance and not lose calling ability are certainly worth taking into 
consideration as well, but if your planned deployment would allow for 
reasonable scheduled maintenance windows, even that wouldn't justify the 
complexity of adding in one SIP proxy (or a pair of them) to the equation.

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
Jabber: kfleming at digium.com | SIP: kpfleming at digium.com | Skype: kpfleming
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
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