Radiotelephone system in the form of a private branch exchange

Details Radiotelephone system in the form of a private branch exchange Radiotelephone system in the form of a private branch exchange

H - Electricity

04

B

325/31

H04B 7/26 (2006.01) H04Q 7/26 (2006.01) H04Q 7/20 (2006.01) H04Q 7/36 (2006.01)

Patent

CA 2003929

ABSTRACT A radiotelephone system in the form of a private branch exchange (12) within and/or outside one or more buildings is equipped with a plurality of mobile subscriber units (28),a plurality of trans- mitter/receiver units (27) capable of communicating with the subscriber units (28) by radio, and a central unit (26) cooperating with the transmitter/receiver units (27). In order that such a radiotelephone system not only permits mobile telephoning within and/or outside buildings but also can be installed later and adapted to changing requirements in a simple manner, the transmitter/receiver units (27) are arranged and designed to form not only a radio link to at least one of the subscriber un;ts (28) but also, via respective adjacent transmitter/receiver units (27), a radio- link chain (radio bus) to the central unit (26), which has a separate transmitter/receiver unit. (Fig. 1)

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