Hi, I am trying to build softphone using pjsip It normally woks fine.But when some other softphone like zopier running on system PJSUA gives following error while setting codec priority pjsua_core.c Error creating SIP TCP listener: Address already in use (WSAEADDRINUSE) [status=130048] I am not able to understand what resource used by softphone which give this error Thanks in advance Mohit Kumar -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090413/696d3886/attachment.html>