Communication system using movable radio terminals

Claim 1

A communication system, comprising: a public telephone; a central telephone exchange connected to said public telephone through a telephone line; mobile terminals; a base station, established in an area proximate to said public telephone, for receiving and transmitting radio signals from and to said mobile terminals and for converting said received radio signals from said mobile terminals to signals to be transmitted over said telephone line to said central telephone exchange and for converting signals transmitted over said telephone line by said central telephone exchange to said base station into said transmitted radios signals; wherein a telephone switchboard is arranged in said central telephone exchange, and the communion system further comprises: a first coupling distributor, arranged in said central telephone exchange and connected to said telephone switchboard, for distributing a transmission path of said telephone line to at least one of the base station and said public telephone; at least one telephone area provided with said public telephone; and a second coupling distributor having two ends and arranged in said telephone area, one end connected to said public telephone and another end connected to said base station; said transmission path of said telephone line being used for transmitting voice and data signals between said base station and said telephone switchboard, as well as between said public telephone and said telephone switchboard.