[Users] Aggregating SIP devices

[Bogdan-Andrei Iancu]

Hi,

try something like this:

sip:asterisk-100 at openser  -> save in AVP X the extension from RURI (100) 
-> apply alias or static rules to convert "asterisk-100" to "asterisk" 
-> do lookup() to get asterisk's contact -> do an avp_pushto() to push 
AVP X into username part -> sip:100 at asterisk_ip -> do reply

regards,
Bogdan

Kristian Kielhofner wrote:

> Hello everyone,
>
>     I have multiple Asterisk systems registered to an OpenSER server.  
> Each of them have several different SIP accessible extensions.  Using 
> alias_db (or something), I need to be able to create contacts that are 
> reachable from the OpenSER server to individual extensions on each 
> Asterisk system.  For instance:
>
> SIP Phone -> Asterisk System -> OpenSER
>
> The SIP phone is registered to the Asterisk system and has an 
> extension (100).
>
> The Asterisk System is registered to OpenSER and has a usrloc entry 
> (asterisk).
>
> I would like to setup an alias like this:
>
> asterisk-100
>
> This alias should be able to dynamically get the location of the 
> Asterisk system from usrloc and reach that extension directly, 
> basically forming a SIP uri like this:
>
> sip://100@[asterisk server ip address - loaded dynamically from usrloc]
>
> That way, if I were to do this:
>
> External SIP Phone -> OpenSER -> Asterisk System -> SIP Phone (ext 100)
>
>     I could "dial" asterisk-100 from that External SIP phone and get 
> connected to the Asterisk System at extension 100.
>
>     This would be similar to the following (in Asterisk land):
>
> [sip-in]
> exten => asterisk-100,1,Dial(SIP/asterisk/100,20)
> exten => asterisk-100,2,Congestion(10)
>
>     The most obvious way to do this is create multiple subscriber 
> entries for each Asterisk system and one register => line for each 
> entry in Asterisk.  I would rather not have to do that!!!
>
>     Is this clear enough?  What do you think?
>
> Thanks!
>
> -- 
> Kristian Kielhofner
>
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