Our IP telephony site has grown beyond the capacity of our SRST router. How can I restrict which phones register with the SRST router to ensure those phones will be able to make and receive calls?
I think you can do something using srst in Callmanager configuration!For example you could create a fake srst region:then create two device_pool and associate the phone the correct device_pool.
(in one device_pool you have to use the fake srst region and in the other the real one)
If you want the phone X work in srst mode associate the Device_pool_real.If you don't