Hi Benny, In fact, I had try to add the UDP transport for IPv6. However, it result in the pjsua willl unregister the IPv6 account upon register. Actually, I have sent an email to mailing list with the title "pjsua unregister upon register for ipv6 client." Hope you can have a look at that mail. The detail of the modified code is in that mail. Thanks a lot ya :) Sincerely, ws ________________________________ From: Benny Prijono <bennylp@xxxxxxxxx> To: pjsip list <pjsip at lists.pjsip.org> Sent: Thursday, March 19, 2009 8:45:37 PM Subject: Re: Function in sip_transport_udp.c bugs in IPv6 and pjsip_endpt_acquire_transport bugs too 2009/3/19 Soh Wei Sin <wssoh85 at yahoo.com> Hi Benny, I had try to use the svn trunk version of pjsua that downloaded on 19th Mar 2009. However, it also does not support for IPv6 instant Message. When I add an account, it cant add in the IPv6 account. The error is : 10:34:41.808 pjsua_acc.c Account sip:client3@[2001:db8:121::3] added with id 2 10:34:41.808 pjsua_acc.c Unable to generate suitable Contact header for registration: Unsupported transport (PJSIP_EUNSUPTRANSPORT) [status=171060] 10:34:41.809 pjsua_acc.c Unable to create registration: Unsupported transport (PJSIP_EUNSUPTRANSPORT) [status=171060] How can I make the pjsua to support for IPv6 IM? Add the code? More specificly you need to add IPv6 UDP transport. cheers Benny -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090319/538dcced/attachment.html>