I want to find out how the conference bridge resource, in hardware (router), registers to the CUCM 6.x. Does it send keep alives? If so, how often? Or, is there another way it registers and stays registered. I have transcoding TRB and conference bridge CFB resources that unregister for no, as yet, apparent reason. The unregister event is not in the app logs on CUCM but we keep getting alarms in our monitoring station. Thanks for any help.