hi , i am using simpleua code, after executing that program i am getting errors in output screen .. 1> error adding new account :invalid operation its making a call but simply disconnecting with error 2> call disconnected [reason 407<proxy authentication required>] and than it quitting that application. can any one tell me what is the reason... what should i do.. Regards, New_bie -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20081203/fd4378e1/attachment.html>