Most cellular service providers route calls automatically to the cellular voice mail system when a cell phone is turned off or in an out-of-coverage area. To prevent work-related calls from being automatically routed to a cellular voice mail system, tell users to disable Extension to Cellular before shutting down the cell phone. Then, the corporate voice messaging system covers incoming calls to the office number and the cellular voice mail system picks up personal calls.
Note:
If a cell phone is used exclusively for business purposes, users can request that the cellular service provider disable voice mail.
See also, Cellular Voice Mail Avoidance Using Confirmed Answer.
