Hi First you guys have done a fantastic job. Well done. I'm very new to pjsip and still learning. I've installed and built the files on a win xp desktop. After building using mingw, I invoke the pjsua application by double clicking on the executable file. It opens a command window and I'm presented with a menu. Now my question is how do I test if all is working? For example, can I register with my voip provider using this? Because I tried to add an account by doing the following; +a Sip url=sip.pennytel.com Registrar= sip.pennytel.com Realm=* Username=8889197425 Password=secret Then I get in red; Pjsua_acc.c invalid local URI status 171039 Pjsua_acc.c error adding account status 171039 Pjsua_acc.c error adding new account status 171039 Any help is much appreciated. Regards Jerry -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090410/be45e4bc/attachment.html>