[SR-Users] BYE not forwarded

Daniel-Constantin Mierla miconda at gmail.com
Wed Apr 8 13:28:08 CEST 2015


Hello,

is the ip 10.0.0.40 set as alias or domain in domain table? It looks
like kamailio considers it to be a local domain.

Cheers,
Daniel

On 08/04/15 13:13, Grant Bagdasarian wrote:
>
> Hello,
>
>  
>
> I have the following setup:
>
>  
>
> UAC (Bria)  ------ Kamailio -------- Freeswitch
>
>  
>
> Kamailio is used to authenticate the client using basic authentication.
>
> Upon authentication the INVITE is sent to Freeswitch for further
> handling.
>
> Kamailio stays in the path using record-route.
>
>  
>
> At this point, the authentication and calling FS works fine.
>
> For now, FS just answers, plays a file and hangsup the call.
>
> Answering the call and playing a file works fine.
>
> When FS hangs up the call, the BYE message is sent back to Kamailio.
>
>  
>
> The problem is the BYE message from FS contains a Route header which
> points to Kamailio again.
>
> Which causes Kamailio to send the BYE message back to itself. Kamailio
> then replies with a 404.
>
> The BYE is never sent to the UAC.
>
>  
>
> When I remove the record_route() for INVITEs, the call works fine, but
> Kamailio isn’t kept in the signaling path.
>
> The BYE is sent directly to the UAC.
>
>  
>
> T 10.0.5.52:54822 -> 10.0.5.50:5060 [AP]
>
> BYE sip:grant at 10.0.0.40:5060;transport=tcp SIP/2.0.
>
> Via: SIP/2.0/TCP 10.0.5.52;rport;branch=z9hG4bK99X8a4Q8BFy1a.
>
> Route: <sip:10.0.5.50;transport=tcp;lr=on>.
>
> Max-Forwards: 70.
>
> From: <sip:123456789 at 10.0.0.40>;tag=aey7rKe7DmQte.
>
> To: <sip:grant at 10.0.0.40>;tag=dbc9c27b.
>
> Call-ID: NmQ4YjYyMDFkNmMwZjg0ZmU5NjQ3ODhjYzU0MDBmNGI.
>
> CSeq: 73909300 BYE.
>
> User-Agent: CM SBC.
>
> Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, NOTIFY.
>
> Supported: timer, path, replaces.
>
> Reason: Q.850;cause=16;text="NORMAL_CLEARING".
>
> Content-Length: 0.
>
>  
>
> Here is the WITHINDLG route:
>
>  
>
> route[WITHINDLG] {
>
>                 xlog("L_INFO", "[R-ROUTE-WITHINDLG:$ci] !>"
> "Route:WITHINDLG;UnixTime:$TV(un);RequestURI:$rU;RequestMethod:$rm;FromTag:$ft;ToTag:$tt;CallID:$ci;From:$fU;To:$rU\r\n");
>
>                
>
>                 if (!has_totag()) {
>
>                                return;
>
>                 }
>
>                
>
>                 # Sequential request within a dialog should take the
> path determined by record-routing
>
>                 if (loose_route()) {
>
>                                route(RELAY);
>
>                                exit;
>
>                 } else { 
>
>                                if (is_method("ACK")) {
>
>                                                if (t_check_trans()) {
>
>                                                                # No
> Loose-Route, but stateful ACK. Must be ACK after 487
>
>                                                               
> route(RELAY);
>
>                                                                exit;
>
>                                                } else {
>
>                                                                # ACK
> without matching transaction
>
>                                                                exit;
>
>                                                }
>
>                                }
>
>                                sl_send_reply("404","Not here");
>
>                 }
>
>                 exit;
>
> }
>
>  
>
> I’m using TCP as the transport.
>
> Kamailio: 4.2.3
>
> Freeswitch: 1.5.15
>
>  
>
>  
>
> I’ve attached a SIP trace from the point of view of Kamailio.
>
> UAC: 10.0.0.40
>
> Kamailio: 10.0.5.50
>
> Freeswitch: 10.0.5.52
>
>  
>
> What is going on here?
>
> The whole Record-Route thing confuses me a lot.
>
>  
>
> Regards,
>
>  
>
> Grant
>
>  
>
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users at lists.sip-router.org
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-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference, May 27-29, 2015
Berlin, Germany - http://www.kamailioworld.com

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