Fixed Mobile Convergence
Abbreviated as FMC or F/MC, Fixed Mobile Convergence is the term used to describe integrated connectivity between fixed and wireless telecommunications network. Fixed Mobile Convergence is used by carriers to provide a seamless switching between a cellular and local networks for mobile users.
In the enterprise, the goal of FMC is to provide business users with one phone number for business calls, while being able to access corporate applications and data in a variety of ways, via a variety of networks. To be a seamless connection, FMC would address network-based solutions, owned and run by the wireless operator; on-premise software that essentially provides a gateway between corporate data and the public network; and hybrids, third-party software built in partnership with the carrier that adds a layer of mobility software between the enterprise and the carrier.
See also "Familiar Ring: Converging Mobile, Fixed Networks At Work" on internetnews.com.