Use the gateway priority option to define how the gatekeeper selects gateways in its local zone for calls to numbers beginning with the associated e164-prefix.
A prefix gateway priority is an entry in the priority list maintained by the gatekeeper for every local zone prefix.
Note: Do not use this option to set priority levels for a prefix assigned to a remote gatekeeper.
Use this procedure to assign a priority value for a zone prefix on a gateway.
You must be in the Design View to add a gateway priority for a zone prefix.
Expand the dial plan tree to view all components.
Locate the zone which contains the zone prefix you want to set a priority for.
Click the Zone Prefixes tab.
Double-click the selected zone prefix.
Click the Gateway Priorities tab.
Right-click and choose Add from the menu.
Select the gateway you want to set a priority for. You can repeat this procedure to assign a zone prefix priority for multiple gateways.
Enter the priority value. The range is 1 to 10, with 10 being the highest priority. The default is 5.
Click Apply. The zone prefix priority is assigned to the gateway(s).
Click Cancel to cancel this procedure.