Hi I am using pjsua rel. 1.8. I have 2 pjsua connected the an IMS platform based on OPENIMSCORE project. One (pjsua#1) has access to the pcscf from internet using its IP address and the other one is connected on the same Lan of the pcscf. I am experimenting the following problem: 1. Pjsua#1 calls PJSUA#2 2. PJsua#2 receives the INVITE and accepts the call sending 200OK 3. Pjsua#1 receives the 200 OK and tries to send ACK. 4. Pjsua#1 does not send ACK because DNS resolution fails. 5. Pjsua#1 does not take care of the failure and changes anyway the state of the call to CONNECTED 6. Pjsua#2 sends again 200 OK until max retransmission then declares disconnect the call. The question is: When the last try to transmit the ACK fails, the INVITE dialog should not complete correctly and the call activation should fail, doesn't it? Best Regards Massimiliano Montevecchi -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100920/e6c9bcc1/attachment-0001.html>