Private mobile communication system easily connecting portable o

Details Private mobile communication system easily connecting portable o Private mobile communication system easily connecting portable o

1997-11-19

2000-05-30

Trost, William G.

Telecommunications

Radiotelephone system

Including private cordless extension system

455426, 455555, H04Q 724

Patent

active

060700815

ABSTRACT:
A private mobile communication system serves to support communication between mutual portable or mobile radio telephone equipment which are registered in the system, and communication between the portable or mobile radio telephone communication equipment and telephones connected to a public communication network. Portable or mobile radio telephone equipment which is not registered in the system transmits a call request to the public network through a private control channel controlling section. A radio base station of the system transfers the call request through a private channel to a private branch exchange (PBX). The PBX serves to support the call to the public network in response to the call request transmitted through the private channel.

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patent: 5315636 (1994-05-01), Patel
patent: 5353331 (1994-10-01), Emery et al.
patent: 5406615 (1995-04-01), Miller, II et al.
patent: 5448619 (1995-09-01), Evans et al.
patent: 5479483 (1995-12-01), Furuya et al.
patent: 5870677 (1999-02-01), Takahashi et al.

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