Hi, I am using pjmedia_transport_close to release UDP transport.But the udp socket is still there when using "netstat -na " to have a check. status = pjmedia_transport_close(channel->transport); channel->transport = NULL; if (status != PJ_SUCCESS) { logging(THIS_FILE, VOXVE_LOG_WARN, "Error close transport", status); hasError = true; } I am using vs 2005 at windows XP and pjsip 0.9.0 release. regards, Gang -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080717/4825ed71/attachment.html