I am using Zero Config and have created a model template within Zero Config for the GXP2160 phones.
Once the Config is pushed onto the phone, the phone wont get a dial tone, the Virtual Multi-Purpose Keys and the Numeric Key Pad, do nothing when the buttons are pressed.
If a factory reset is done, the phones become good.
When I turn the disable the Model Template and update the config without the Model Template, the phone works as expected.
Basically, the only reason I want to use the Model Template is to update all the programmable keys to be the same.