Hi Will,
It sounds like your kamailio.cfg is not looking up the user location database before trying to relay the INVITE.  There is a relevant section in the kamailio-basic.cfg example configuration file:

        
request_route {
	...

        # user location service
        route(LOCATION);
}
 
...

# USER location service
route[LOCATION] {
        if (!lookup("location")) {
                $var(rc) = $rc;
                t_newtran();
                switch ($var(rc)) {
                        case -1:
                        case -3:
                                send_reply("404", "Not Found");
                                exit;
                        case -2:
                                send_reply("405", "Method Not Allowed");
                                exit;
                }
        }

        # when routing via usrloc, log the missed calls also
        if (is_method("INVITE")) {
                setflag(FLT_ACCMISSED);
        }

        route(RELAY);
        exit;
}
The logic is that if the call is for a local registered user whose location is available in the "kamctl ul"  then request_route() should pass the request to the route(LOCATION) routine.  The function call lookup("location") then does the magic if matching the address of record ([subscriber_name]@[our_domain_name]) and returning the $ruri of the registered phone ([realid]@[realip]).  route(RELAY) is then able to send the call on to the phone's actual IP address.

Hope that helps.

Paul Smith

      On 02/10/14 03:33, Will Ferrer wrote:

    

    

      
Hi
        


        

        
I was wondering if any one had any advice or examples for
          me of how to get a call to be routed to a subscribed
          softphone.

        


        

        
We have 2 boxes in our testing deployment, a load balancer
          / sbc and a call processing box.

        


        

        
Calls come in to the sbc, and then are passed to the call
          processing box. The call is analyzed and the branch uri is
          rewritten to a destination address when applicable for the
          call (this is how we handle routing of calls to certain
          numbers -- we do this utilizing custom code and a custom db).

        


        

        
This works just fine when the destination sip uri is phone
          number (in which case we do lcr) or if the destination goes to
          a remote address.

        


        

        
However when the destination is a subscriber:
          sip:[subscriber_name]@[our_domain_name], the call is passed
          back to the sbc, which passes it to the callprocessing box,
          back and forth until a too many hops error occurs.

        


        

        
The subscriber I am trying to send the call too does show
          up under "kamctl ul show".

        


        

        
I feel like there is something basic I must be missing
          here.

        


        

        
Does any one have any advice for me?

        


        

        
Thank you very much in advance.

        


        

        
All the best.

        


        

        
Will Ferrer

        


        

      

      

      

      

      
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users