Hi all, I had a problem when trying to add in IPv6 account to the pjsua. I had change the PJSIP_TRANSPORT_UDP to PJSIP_TRANSPORT_UDP6 and PJSIP_TRANSPORT_TCP to PJSIP_TRANSPORT_TCP6 in pjsua_apps.c file. It allow the registration, but it will unregister the account immediately.The error as below: 11:52:26.376 pjsua_acc.c Unregistration sent 11:52:26.376 sip_reg.c Invalid Contact URI: "<sip:ims at 2001:DB8:121:0:0:0:0:3:6060;transport=UDP>" 11:52:26.376 pjsua_acc.c Client registration initialization error: Invalid URI (PJSIP_EINVALIDURI) [status=171039] 11:52:26.376 pjsua_acc.c Unable to create registration: Invalid URI (PJSIP_EINVALIDURI) [status=171039] Why can this happen? The attached file is the log file for the error. Thanks, Sincerely, ws -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090326/4e12712b/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: error.log Type: application/octet-stream Size: 10757 bytes Desc: not available URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090326/4e12712b/attachment.log>