I have 2 MCUs working fine on my network. One is a MCU 3515, the other is an older MCU 3545. Both register with the same gatekeeper and work fine.
How do I configure these to work as backups to each other? I'm sure there are many strategies, what would you recommend?
Here is what I'd "like" to do, but I'm not sure if it's possible or not.
All prefixes 20* go to MCU3515
If MCU3515 fails, then all 20* go to MCU3454.
All prefixed 80* go to MCU3545
If MCU3545 fails, then all 80* go to MCU3515.