I would like to use the srst feature in callmanager 3.3, but I am confused by the choices in device pool. You can create your srst definition under srst, or use the default gateway. What are the benefits of using the definition? Since cm 3.0 I always made the default gateway for my remote sites the srst router, using the scope options in dhcp. If I choose use dg in the device pool, do I have to put the ip of the router in the scope options.