[Serusers] Some questions on "loose_route"

[Nils Ohlmeier]

Hello,

On Friday 02 January 2004 14:46, Franz Edler wrote:
> from various examples in the SER admin_guide and my own SIP knowledge-base
> I conclude, that the action "loose-route()" is responsible for correct
> routing of those requests, that are not destined to the proxy (host of
> Request-URI is not the proxy) and that have a proper Route-header
> indicating
> "loose-routing".
>
> As such the action "loose_route()" should be sufficient to modify the
> Request in such a way, that the following action "t-relay()" finishes
> processing of the request. Therefore the action short sequence
> 	... if (loose_route()) { t_relay(); break; };
> does all, what is necessary for loose routing of those requests.
>
> My problem is, that I could not produce a condition, where "loose_route()"
> evaluates to true, so that the action block { t_relay(); break; } is
> executed. I expect, that in a simple call-scenario with one record-routing
> SIP proxy (SER) the routing of the ACK- and the BYE-method should trigger
> the above mentioned "loose_route()" action. But unfortunately it does not.
> Why?

Because you made the wrong assumption: loose_route() will directly 
deliver/forward the request if it contains a valid route header. If i'm not 
wrong the t_relay() in the if clause is only for the case loose_route fails 
e.g. because of a broken route header.

Greets
  Nils