Trunked communication system with nationwide roaming capability

The local wire system for providing are arranged on telephone's interconnect device and the communication with a nationwide centre computer the local computer. Each selection's wire system, multiple OF a mobile OF the are retained is used for; entrusts in a mobile temporarily the user. When the user determine and associated and in a new wire system, comprising mobile hand-free OF. The mobile entrusts ID and transmitting the user, the user connection with a mobile OF the new wire work system. The mobile entrusts and further - to the national centre computer in turn end of the interconnection conversation correctly. The mobile user and lower entrusted a mobile OF efficacy, which is exceeds the current system is stretches to the system.