The solution that fixed our problem was to Edit the sip_general_additional.conf file by adding the line "session-timers=refuse" Thank you to each one who gave suggestions. Keith Keith Heppner Rio Grande Bible Institute 4300 S Business Highway 281 Edinburg, TX 78539-9650 Office 956-380-8171 Cell 956-335-6576 fax 956-380-8258 www.riogrande.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20160809/2753ad1c/attachment.html>