I have a multiVoip ATA device that we use for paging. I setup the device by using the Director-IP Telephones-SIP Registration with the following information Contact SIP:1910@10.100.111.30:5060 AOR SIP:1910@10.5.10.204 HOST 10.100.111.30 User DDCPager SIP Profile System Site WFDC // when I do the registration the system works fine.. dial the 1910 and get the pager system. The problem is the Director drops the SIP registration after a couple of hours. this is repeatable. thanks for your help.