hi all, My application used pjsip ua2 api to deal with sip message, in the scenario i answer the coming call ,and voice bridge was connect success, but the UAS will timeout for a moment . i check the sip signal message, when answer 200 ok , UAC should send ACK signal, but it seem doen't send out by pjsip ? is there something i missing when i answer the call ? or UAC should do something after received 200 ok signal ? best regards! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20150317/9d6b5a40/attachment.html>