Hello Daniel, Thanks for your help on this. I set the registration to expire after 10 seconds and restarted Kamailio with debug level 1. Here's the output: Jul 25 02:43:41 Kamailio-DEV /usr/sbin/kamailio[30148]: ERROR: uac [uac_reg.c:537]: uac_reg_tm_callback(): authentication failed for <2500-xxx.xxx.xxxx.com> Thanks! On 7/22/2013 1:57 AM, Daniel-Constantin Mierla wrote: > Hello, > > can you send the log messages with debug=1 when the re-registration 401 > is processed? > > Cheers, > Daniel > > On 7/21/13 1:35 AM, Isaac McDonald wrote: >> Hello, >> >> I'm using the UAC module to register to remote sip proxies. When >> starting Kamailio, the UAC module successfully registers with the >> remote >> sip proxies as expected. Upon expiration of the registration (refresh >> interval) the UAC module fails to re-register. >> >> I've done some sip traces and found the following: >> >> During Kamailio startup the registration process is typical of what >> you'd expect: >> >> 1. UAC module sends registration request without authentication >> information to remote registrar >> >> 2. Remote sip proxy sends a 401 back to Kamailio saying unauthorized >> >> 3. UAC module sends another registration request with credentials and >> registration is complete. >> >> After the refresh interval expires, the UAC module performs step 1 >> from above, and the remote sip proxy sends back a 401 (step 2). At >> this point, the UAC module doesn't resend the registration request >> with credentials thus failing to register. >> >> I've got the following modparam's set on the UAC module. >> >> modparam("uac", "reg_contact_addr", "10.0.0.31:5060") >> modparam("uac", "reg_timer_interval", 60) >> modparam("uac", "reg_retry_interval", 300) >> >> >> Anyone have any idea's as to why registrations are failing after the >> refresh interval? >> >> >> >> >> _______________________________________________ >> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >> sr-users(a)lists.sip-router.org >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > -- > Daniel-Constantin Mierla -http://www.asipto.com > http://twitter.com/#!/miconda -http://www.linkedin.com/in/miconda > > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users(a)lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users >