More info:
UAS is Fring wired into our own SIP server. UAC happens to be a CISCO PSTN Gateway. Fring is serving up multiple headers (on separate lines) in a 200 OK response - which we don't see with Linksys, Polycom, XTen, etc. So is there a rule for expressing this: Record-Route: <sip:[email protected]:5060>, <sip:[email protected]:5166> Record-Route: sip:a.b.c.d:4144 as a single record route? I would assume the ordering of these must be important - e.g. always add 2nd Record Route to front of first Record-Route. .but I can find anything that tells me so. Thanks. From: SCG2 [mailto:[email protected]] Sent: 22 February 2010 09:46 To: '[email protected]' Subject: Handling multiple record route headers Hi, I am receiving a: SIP/2.0 200 OK From: <sip:[email protected]>;tag=2A515F7C-E78 To: <sip:[email protected]>;tag=2852349aa700191083d2e580b676d2c3 Via: SIP/2.0/UDP [email protected];branch=74120f13ef6c47555033517203dcd8ee.4;rport=5060;received=a.b. c.d Via: SIP/2.0/UDP [email protected];branch=a3cfdc1207b90334f3dd00bc032115bf.2 Via: SIP/2.0/UDP [email protected];branch=z9hG4bK4305421055 CSeq: 101 INVITE Call-ID: [email protected] Contact: <sip:[email protected]:53255> Record-Route: <sip:[email protected]:5060>, <sip:[email protected]:5166> Record-Route: <sip:a.b.c.d:4144> Content-Type: application/sdp Content-Length: 206 ... from a UAS. Can someone tell me how that double record route should be expressed in a sinlge Record-Route header I might pass on to the calling UAC please? Specifically, should the 2nd record route be placed at the start or the end of the first when amalgamating them? And whatever the answer, is that always the rule? Can't find anything in the RFCs I've loked at. Many thanks. _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
