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Large number of SIP Trunks

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JayNEC

IS-IT--Management
Jun 5, 2002
942
US
So, you can setup multiple SIP Signaling/Trunk groups - no problem. Each of them with 255 members.

Those trunk groups then can be in a route pattern - up to 16 of them. For a total of 4096 in that route pattern.

How do you exceed this? I don't think a route-pattern can fallover to another route pattern? I've only come up with setting up multiple route patterns and choosing different outbound digits to go to each one to divide of the traffic. That's a manual process, and prone to needing tuning.

New England Communications
 
Typically you wouldn't need that many trunks in a route.

Basically you'd group up your users into locations and network regions such that the first cluster of 10K uses a route with trunks 1-10, the second uses a route with trunks 2-20, etc.

What are you sizing? For how many users? Because normal sizing even for heavy admin users would make 4K trunks still go a long way.
 
Are you only doing outbound? or is this inbound and outbound trunks that you need that many trunks for?
If it's inbound and outbound, then you could setup some trunks to be used for only inbound etc.?
If you are doing outbound dailers campains, you need to make sure that you carrier can handle the calls per sec.
 
Mostly theoretical right now. Good point about routing based on population.

Large call center environment, both inbound and outbound. Mostly inbound.

New England Communications
 
Incoming will never matter - CM will pick the lowest # sig group that matches far end node name, port and domain. If you had sig/trunk 100-200 each on port 5060 to node-name SM1 in mysipdomain.com, that would get calls inbound to load up trunk groups 100 thru 200 in that order.

For the outbound part, you'd just cluster them out somehow. You could do any number of things - different locations, different partition groups, whatever.

 
Ok, lowest sig group is picked for inbound and if that's full it goes to the next lowest right?
sig 1 then sig 2

New England Communications
 
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