Mobile communication system

A mobile communication system comprising:

• a switching station;
• a plurality of base stations connected to said switching station;
• a plurality of mobile stations moving in a service area formed by combination of communication zones, each of which zones includes at least one of said base stations;
• said base stations and said mobile stations having a speech radio channel for speech and a control radio channel for communication of communication control signals, said speech radio channel and said control radio channel including an upward channel from the mobile stations to the base stations and a downward channel from the base stations to the mobile stations respectively,
• at least one of said communication zones including a selected plurality of base stations, selected from among said plurality of base stations, installed within said zone;
• one of said selected plurality of base stations installed within said at least one communication zone having allocated thereto a radio channel to be used for a selected specific case only and being set in the normally receiving state, and said one base station and said switching station having means for controlling the operation thereof such that if said one base station receives a general communication request signal through the upward channel of the radio channel allocated for the selected specific case only from a requesting mobile station within said at least one communication zone, said switching station commands general communication to said base station receiving the general communication request signal from the requesting mobile station and transmits a general communication signal of a prescribed signal to the requesting mobile station.