Telephone system without central office

Details Telephone system without central office Telephone system without central office

H - Electricity

04

J

363/2

H04J 1/06 (2006.01) H04M 9/02 (2006.01)

Patent

CA 1127329

TELEPHONE SYSTEM Abstract of the Disclosure A telephone system is provided which requires no central office. All the stations on the system are inter- connected by a single line or cable and each station includes a computer which carries out the necessary switching. Each station is then able to call any other station, or to respond to a call, without requiring any central office. Frequency division multiplexing is used to permit a number of conversa- tions to be carried on simultaneously and two frequencies are assigned to each conversation to permit duplex operation. A page capability is also provided.

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