Call Forward on No Answer (CFNA) automatically routes calls to a target when a telephone rings, but the user does not answer. This service is provisioned against a station on the CS 1000 and cannot be configured.
Communication Manager allows a user to modify the call forward destination. Users who want to use this feature should refer to the Communication Manager documentation for details. This is not a CS 1000 feature and is provided by Communication Manager that controls the station through Device Adapter.
The equivalent service used in Communication Manager is Coverage and applies to both busy stations and stations where the user did not answer. For more information about the Coverage feature, see the Communication Manager feature documentation.
For more information about the Call Forward feature, see Call forward in Appendix H: Call processing features and services.