Hi Daniel,
another question concerning this set of proxies I want to travers.
I insert the first one with avp_pushto($duri...) But how do I get openser to insert this new header without forwarding it to itself (using forward).
It works with the following config Avpushto("$duri","adress1"); Avpushto("$Route","adress2"); Forward("itself");
Regards Johannes
-----Ursprüngliche Nachricht----- Von: users-bounces@openser.org [mailto:users-bounces@openser.org] Im Auftrag von Daniel-Constantin Mierla Gesendet: Freitag, 21. Oktober 2005 10:47 An: Joachim Fabini Cc: 'Joachim Fabini'; users@openser.org Betreff: Re: [Users] Registrar-initiated Route changes on Invite?
Hello Joachim,
the solution is rather simple. If you have a set of proxies where you want to send the message, you have to add the address of the first one in dst_uri (see avp_pushto() -> $duri: http://www.voice-system.ro/docs/avpops/ar01s06.html#avp_pushto) and the rest of them in Route headers.
Cheers, Daniel
On 10/20/05 18:12, Joachim Fabini wrote:
Hi Klaus,
Seems like I missed to mention the most important thing: We do have the mechanisms to store and retrieve all routes in place. What I am looking for is just the mechanism (OpenSER calls, order of calls) where/how to add some route headers within the registrar so that it can route the message to the destination.
It's about plain SIP routing, nothing to do with path (although it's a path implementation).
regards --Joachim
-----Original Message----- From: Klaus Darilion [mailto:klaus.mailinglists@pernau.at] Sent: Donnerstag, 20. Oktober 2005 15:33 To: Joachim Fabini Cc: users@openser.org; 'Joachim Fabini' Subject: Re: [Users] Registrar-initiated Route changes on Invite?
I think the Path module from ser experimental tree, recently updated by Andreas Granig, could do that. Probably you would have to port it to openser.
regards klaus
Joachim Fabini wrote:
Hi,
We'd like to force the following SIP INVITE routing scenario: UA1->P1->P2->R->P2->P1->UA2.
Unfortunately the Route is not known apriori and must be built dynamically. P1 knows the Route from P1 to R, R knows the Route from R to P1/UA2.
The INVITE sent by UA1 is loosely routed to R based on the Route (Route: sip:P2;lr,sip:R;lr) that is added by P1 to UA1's INVITE. This works. The message arrives correctly to the registrar, Route header contains Route: sip:R;lr as it should.
What we'd like to do:
- Lookup the contact (lookup("location");)
- Rewrite the Route field to the value Route: sip:P2;lr,sip:P1;lr that is stored by R in an AVP.
- Forward the Invite on this route to UA2
Can someone please give some hints on how this is typically done in OpenSER? Although we rewrite the Invite's Route header field (new value stored in an AVP) at the Registrar, loose_route() does not work. We tried several alternatives including re-writing the Route header, pushing hard-coded strings into the Route, etc. but none of these solutions does what we want.
What does work is if R self-forwards the Invite and only then adds a new Route header. Apparently loose_route() in R acts on the route header of the incoming INVITE - if present - and ignores route header changes done within the script.
Thanks in advance --Joachim
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