Ensure that the G3 Version field is set to V17 or later.
Click Next until you see the Multiple Level Precedence and Preemption field.
Ensure that the Multiple Level Precedence and Preemption field is set to y.
Note:
If the Multiple Level Precedence and Preemption field is set to n or the G3 Version field is not set to V12, go to the Avaya Support website at http://support.avaya.com to open a service request.