Question

A CCNP engineer is deploying a new CUCM cluster. Executive phones must be able to call any internal or PSTN destination, while shared lobby phones may only reach internal extensions and local emergency numbers. Both phone types are assigned the same device pool. The engineer wants to grant executives broader dialing rights than the physical phone itself allows, without changing the device pool. Using the line/device calling search space approach, which configuration achieves this requirement?

Accepted Answer

Assign a restrictive CSS to the phone device and a more permissive CSS to the executive's directory number (line); CUCM concatenates the line CSS partitions ahead of the device CSS partitions.

Answer

Assign the permissive CSS only to the device and leave the line CSS set to <None>, since the device CSS always overrides the line CSS.

Answer

Place all executive-only route patterns in the same partition used by lobby phones and rely on Time-of-Day routing to separate access.

Answer

Configure the AAR CSS on the executive line so that broader PSTN access is granted when the primary CSS fails.