Hi Daniel, If I understand correctly, for cases where a dialog timeout occurs and send_bye=1, you rely on the DLGCB_TERMINATED_CONFIRMED (cdr_on_end_confirmed) to write the CDR? Therefore, the DLGCB_EXPIRED (cdr_on_expired) callback is not executed in such case? In any case, this change produces a warning in the ACC module (see acc_cdr.c line 297). I think the level should be DEBUG? Also, I tested and the CDR is now written in this case. Thanks, Mickael --- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/commit/265dc95aac8eb4b5cee7992dde55ff0…