I would first take a look at a packet capture. You need to see exactly what name the phone is trying to invite. From: serusers-bounces(a)lists.iptel.org [mailto:serusers-bounces@lists.iptel.org] On Behalf Of Nahum Nir Sent: Monday, April 12, 2010 2:31 PM To: serusers(a)lists.iptel.org Subject: [Serusers] Problems Using iptel accounts Hi all, I have made two accounts at iptel: nahum1 and nahum2. I have two computers running X-Lite, both of them registered succesfully. But when I try to invite I get 404 Not Found. I'm dialing nahum2@iptel.org<mailto:nahum2@iptel.org>. What an I doing worng? Thanks, Nahum ________________________________ DISCLAIMER: This e-mail may contain information that is confidential, privileged or otherwise protected from disclosure. If you are not an intended recipient of this e-mail, do not duplicate or redistribute it by any means. Please delete it and any attachments and notify the sender that you have received it in error. Unintended recipients are prohibited from taking action on the basis of information in this e-mail.E-mail messages may contain computer viruses or other defects, may not be accurately replicated on other systems, or may be intercepted, deleted or interfered with without the knowledge of the sender or the intended recipient. If you are not comfortable with the risks associated with e-mail messages, you may decide not to use e-mail to communicate with IPC. IPC reserves the right, to the extent and under circumstances permitted by applicable law, to retain, monitor and intercept e-mail messages to and from its systems.