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:[email protected]:5060 AOR SIP:[email protected] HOST 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.