Fixed-Mobile Convergence is the term used to describe a wide range of mobile services that converge elements of fixed communications infrastructure to complement the core mobile service. This encompasses a wide range of services, however they generally have the core of allowing the user or the network to take advantage of higher speed, cheaper local unlicensed access networks in local environments for lower value, high volume transactions, such as cheaper calls or downloading larger files from home or the office, whilst using the scarcer licensed spectrum for higher value, lower volume transactions, where customers are prepared to pay the mobile premium of licensed spectrum.

Smooth cooperation between PSTN (Public Switched Telephone Network) and PLMN (Public Land Mobile Network) networks is one of the issues in telecommunications. The common use of these networks and above all, their services is known as “Fixed Mobile Convergence“ (FMC).

From the user‘s point of view, a wide range of uniform services across fixed and mobile networks is very important. The combination of innovative network spanning FMC services with an attractive rating gives new impulses to the telecommunication market. The network operators and service providers use the new FMC services to differentiate themselves even more from the competitors with the new FMC services and to increase their market share.