Two-way personal message system with extended coverage

Details Two-way personal message system with extended coverage Two-way personal message system with extended coverage

H - Electricity

04

B

325/18

H04B 1/40 (2006.01) G08B 3/10 (2006.01) H04Q 7/38 (2006.01) H04Q 7/08 (2006.01)

Patent

CA 1231383

A TWO WAY PERSONAL MESSAGE SYSTEM WITH EXTENDED COVERAGE Abstract A communications system for carrying messages via a radio channel between one central site (100) of a plurality of central sites and a plurality of two-way remote data units (106) is disclosed. Each central site (100) has a radio coverage area (300) and each remote unit has a unique address and association with one of the central sites. When a message addressed to one of the remote units is received in a central site, a file (804) of remote unit addresses is searched to find the location and central site association of the remote unit to which the message is addressed. If an address match is found indicating that the remote transceiver is in the coverage area of the message-receiving central site, the addressed message is stored and transmitted in that site. If an address match is found indicating that the remote transceiver is in another central site, the addressed message is conveyed to that site for transmission.

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