Hi Benny, I used Wireshark to look at the headers a other fields and I noticed that when using this other application similar to X-Lite, the first request sent by it, contains a field in the message header called Authorization containing username, realm, nonce, etc. This field isn't there when I use pjsip. Could this be the reason? Thanks, Jorge Quoting Benny Prijono <bennylp at pjsip.org>: > On 1/18/08, jorge.amador at withus.pt <jorge.amador at withus.pt> wrote: >> >> Hi Klaus, >> >> Thanks for the hint but it's not working yet. If I don't use the lr >> parameter I receive this response from the proxy: >> >> 15:02:20.070 pjsua_acc.c SIP registration failed, status=404 >> (Registrar Not Found) > > > Well at least it has reached the proxy. ;-) > > > I've checked the server's IP address and it is the right one. I've >> tried registering with another application similar to X-Lite and it >> worked fine with the same IP address for the server and the proxy I'm >> using for pjsip. If I use the lr parameter like you told me to I don't >> get any response at all from the proxy. Any ideas? Thanks a lot, > > > If you have other phone working, then the best way is to see what's the > request URI and Route headers sent by that phone, and copy them as pjsua > configuration. > > cheers, > -benny > > > Jorge >> >> >