[SR-Users] Routing calls to a subscribed softphone

[Will Ferrer]

Hi Paul

Thank you very much for the quick response and the probably spot on information. I really bet that is my issue.

I will be testing this out tonight and I will post back with what I find.

Thanks again and all the best

Will Ferrer 

> On Oct 1, 2014, at 11:53 PM, Paul Smith <paul.smith at claritytele.com> wrote:
> 
> 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 at lists.sip-router.org
>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
> 
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users at lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.sip-router.org/pipermail/sr-users/attachments/20141002/fdd92e4a/attachment.html>