Hi Benny, I have the following registration situation using PJSUA: Summery from the log: Registers OK then immediately gets an IP address change - Updating registration. Unregistration sent Registration sent Response msg 200/REGISTER (Expires: 180) Last message says: sip:877510521 at sip99.telfreesa.com: unregistration success and in the account display it shows: sip:877510521 at sip99.telfreesa.com: 200/OK (expires=-1) Online status: Online If I dial inward to PJSUA the registrar does call PJSUA and the call can be completed, so it appears PJSUA is registered although it reports ?expires -1? and does not re-register after the registration interval. I am unable to make a outbound call.. Regards Lafras -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: Log trying to register.txt Url: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20071201/f72c4bde/attachment.txt