[SR-Users] Fwd: [Kamailio 4.2.0] Carrieroute Routing Questions

[Massimo Varriale (IPZeta)]

Hi,
is there someone could give me a hint on how to configure this module?
I can see that the call is going out to my external gateway interrogating the routing table, however I'm getting a CANCEL from Kamailio.

If using this cr_route I can see that users can't place calls themself (internal calls) because all calls are going out to the external IP.
In my opinion the cr_route should be placed replacing PSTN route, right?
However I'm still getting the problem.

Thanks
Max





Inizio messaggio inoltrato:

> Da: "Massimo Varriale (IPZeta)" <m.varriale at ipzeta.it>
> Oggetto: [Kamailio 4.2.0] Carrieroute Routing Questions
> Data: 25 novembre 2014 16:27:05 GMT+01:00
> A: sr-users at lists.sip-router.org
> 
> Hi Guys,
> I'm new on Kamailio and this list, so be patient with me :)
> 
> I've built an almost "complete" working SIP server on Ubuntu 14.04 LTS.
> I told almost complete because my problem is with carrierroute module because I'm not understanding the routing file and where I should put the code to use function cr_route
> 
> I would like to allow SIP calls/video between users for free and send calls to different external Gateways / Switches, etc based on the dialled destination.
> 
> In particular, I can send outbound calls a prepaid platform that will allow to bill calls based on CLI validation, but in all my tests, it seems that calls are going out always to the IP address of the remote gateway found into the carrierroute table ignoring the SIP user I'm calling.....what is the correct routing?
> 
> I'm finding some docs around there, but some refer to very old versions of Kamailio and some others are not clear to me.
> 
> What's wrong with my routing logic?
> 
> Thank you so much!
> Max
> 
> 
> 
> 
> 
> 
> 
> route {
> 
> 	# per request initial checks
> 	route(REQINIT);
> 
> 	# NAT detection
> 	route(NAT);
> 
> 	# handle requests within SIP dialogs
> 	route(WITHINDLG);
> 
> 	### only initial requests (no To tag)
> 
> 	# CANCEL processing
> 	if (is_method("CANCEL"))
> 	{
> 		if (t_check_trans())
> 			t_relay();
> 		exit;
> 	}
> 
> 	t_check_trans();
> 
> 	# authentication
> 	route(AUTH);
> 
> 	# record routing for dialog forming requests (in case they are routed)
> 	# - remove preloaded route headers
> 	remove_hf("Route");
> 	if (is_method("INVITE|SUBSCRIBE"))
> 		record_route();
> 
> 	# account only INVITEs
> 	if (is_method("INVITE"))
> 	{
> 		setflag(FLT_ACC); # do accounting
> 	}
> 		
> 	# dispatch requests to foreign domains
> 	route(SIPOUT);
> 
> 	### requests for my local domains
> 
> 	# handle presence related requests
> 	route(PRESENCE);
> 
> 	# handle registrations
> 	route(REGISTRAR);
> 
> 	if ($rU==$null)
> 	{
> 		# request with no Username in RURI
> 		sl_send_reply("484","Address Incomplete");
> 		exit;
> 	}
> 
> 	# dispatch destinations to PSTN
> 	#route(PSTN);
> 		
> 	
> 	# CARRIERROUTE MODULE routing logic
> 	# check table for carrier default and domain default
> 	if(!cr_route("default", "default", "$rU", "$rU", "call_id")){
> 		sl_send_reply("403", "Not allowed");
> 	} else {
> 		# In case of failure, re-route the request
> 		t_on_failure("1");
> 		# Relay the request to the gateway
> 		t_relay();
> 	}			
>  
> 	
> 	
> 	# user location service
> 	route(LOCATION);
> 
> 	route(RELAY);
> }
> 
> 

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