[Asterisk-Users] SER Interaction: Agents and Extensions

[brett-asterisk at worldcall.net]

Matthew Boehm wrote:

> With all of these caveats, it seems to me that a SER->Asterisk solution
>isn't that great. If anyone else out there can show me otherwise...
>
>Thanks,
>Matthew
>  
>

I think you might be missing the point here. SER is a raw SIP processor. 
So for a second throw everything you know about Asterisk + SIP out the 
window and go back to vanilla SIP. Getting used to a B2BUA in the call 
path kinda beats some of the raw power of SIP up. Think of how a SIP URI 
is formed. That domain portion is kinda like a context, right? 
furthermore, SER can "do stuff" with that.

I'm doing my own eval with SER for a very large deployment. But I'm just 
getting started. I had SER running about a year ago, but it's been about 
that long since I really toyed with it.

One of the call flows I'm about to try is:
PSTN GW -> SER -> Asterisk "Transfer"/re-invite -> SER -> Phone

The idea is that SER manages my PSTN gateway. I can always just stack 
more Asterisk servers on, SER I'll never really need to expand (there is 
a redundant SER Server, removing the need for clustering).  Then the 
call gets "sent" to asterisk for smart call processing, however actual 
setup of the media gets resent back to SER. I'm not sure if I'll be able 
to do this, but  I may be able to do it with re-invites. Any thoughts?
-Brett