[OpenSER-Users] Problem with handling 3xx responses and contact with maddr

I'm using OpenSER to connect to a Nortel CS1000M, and I'm having some problems. The way the Nortel works is that it has what they call a Network Routing Service (redirect server, really), that issues either a 302 (if a single SIP gateway exists on the CS1000) or a 300 (if multiple). Here's a sample 300 from my system (IPs and domains changed to protect the guilty): U 10.1.1.3:5060 -> 10.0.1.1:5060 SIP/2.0 300 Multiple Choices. Via: SIP/2.0/UDP 10.0.1.1;branch=z9hG4bKa66e.99fc1a25.1;received=10.0.1.1. Via: SIP/2.0/UDP 10.1.3.114;branch=z9hG4bK7d42804867A25509. From: "0004f2145263" <sip:0004f2145263@dtw-openser01.sub.domain.com>;tag=5F7CDD45-DDCE1F92. To: <sip:12345@dtw-openser01.sub.domain.com;user=phone>;tag=34887. Call-ID: 58dd5646-e86d140f-c2ead634(a)10.1.3.114. CSeq: 1 INVITE. Contact: <sip:12345;phone-context=udp@domain.com:5060;maddr=10.1.1.1;transport=ud p;x-nt-redirect=redirect-server;x-nt-redirect=redirect-server>. Contact: <sip:12345;phone-context=udp@domain.com:5060;maddr=10.1.1.2;transport=tc p;x-nt-redirect=redirect-server;x-nt-redirect=redirect-server>. Content-Length: 0. The problem I have is that the Contacts have an maddr, and I need relay to it. However, I can't seem to be able to use transformations to get the maddr for relaying. Here are some log messages with comments inline: Jul 16 19:50:49 dtw-openser01 /usr/local/sbin/openser[4306]: Branches are: <sip:12345;phone-context=udp@domain.com:5060;maddr=10.1.1.1;transport=ud p;x-nt-redirect=redirect-server>;q=0.01 This is just an xlog of $bR, but I'm not sure where the q= value is coming from (get_redirects?). Jul 16 19:50:49 dtw-openser01 /usr/local/sbin/openser[4306]: ERROR: parse_uri: bad uri, state 0 parsed: <<sip> (4) / <<sip:12345;phone-context=udp@domain.com:5060;maddr=10.1.1.1;transport=u dp;x-nt-redirect=redirect-server>;q=0.01> (120) Jul 16 19:50:49 dtw-openser01 /usr/local/sbin/openser[4306]: tr_eval_uri: invalid uri [<sip:12345;phone-context=udp@domain.com:5060;maddr=10.1.1.1;transport=u dp;x-nt-redirect=redirect-server>;q=0.01] These are what I get as a result of trying to xlog $(bR{uri.maddr}) Anyway, I would be greatly appreciative of any help someone might offer on the matter. Regards, - Brad The contents of this e-mail are intended for the named addressee only. It contains information that may be confidential. Unless you are the named addressee or an authorized designee, you may not copy or use it, or disclose it to anyone else. If you received it in error please notify us immediately and then destroy it.