Hi all , If according to the Sip server specification we had different Username :and Authorization User Name: is there any provision provided for the separate Authorization User Name for sending to server as this provision is also given in other softPhone like X-lite Please Reply. Regard's Vivek -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100115/ff7a5dff/attachment.html>