In preparation for moving to CM5.2 we are replacing all of out S8300's with C's. Our Business partner told us that we can do this prior to moving to the new S8730's CM5.2 servers and that our current S8710's CM2.2 would register the new S8300's. Our initial couple of sites look like they are going to work then after about 15 minutes start rebooting with System Request 4's, then go to out of service...We have installed new S8300's before so we know the procedure. Is our business partner giving us false info on the new CM5.2 S8300c's working with our existing CM2.2?