[Kamailio-Users] Multiple SIP Proxy Environment / Socket Information

[Iñaki Baz Castillo]

El Martes, 21 de Abril de 2009, Brandon Armstead escribió:
> Inaki,

Please, mantain the thread in the maillist.


>     Thanks for the input -- that does look similar to what I'm looking to
> do, however not 100%.  From looking at the RFC it looks as if there is
> always a certain path being traversed, however in my case, its more of a
> "this is not the server that holds this user location socket binding, lets
> forward to the server that does".
>
> So in essence:
>
> UA1 can register to P1, P2, P3, and so on.....
>
> However it does not register to P3 via the means of UA1 REGISTER -> P1 ->
> P2 -> P3 (REGISTRATION).
>
> It simply registers directly to P1, or P2, or P3, etc....
>
> In which case upon user lookup: lookup("location"), I want to be able to
> say "Hey I do not hold the socket for this registration, forward to server
> that does to do the actual lookup(location) and t_relay() to the UA.

Yes, it's a different scenario.

You could do some trick:

- When P1 receives a REGISTER it sets a bflag for it (bflag 1).
- When P2 receives a REGISTER it sets a bflag for it (bflag 2).
- When P3receives a REGISTER it sets a bflag for it (bflag 3).

When P1 receives a request and performs location for that AoR, it will also 
extract the bflags, so P1 checks if bflag 1 is on. If not and bflag 2 is on, 
then it routes (by setting $du => without changing the resolved RURI) the 
request to P2.

:)


-- 
Iñaki Baz Castillo <ibc at aliax.net>