there are three sites with centralized design model. only one site has callmanager and the other two sites only gateways which phones in remote sites register through callmanager. I have a question as far as device pool. I need two remote site use SRST in the case of callmanager failure. so I have to create three device pool for all three sites and assign SRST reference to each device pool. But the problem is: media termination point, MOH, Transcoder are in default device pool. How can I make all of these available to all three sites whereas I have four device pools?