I use PJSUA develop a SIP client, when i call the IP phone, I can hear ring, but when I pick up the phone, it will send confirm and connect state,then will receive disconnect state notify, I want to know why? because I still hold up the phone, do you know when will the on_call_state call function get the DISCONNCTD state? Thanks _________________________________________________________________ MSN ???????????????????? http://cn.msn.com -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080813/baee796a/attachment.html