Electronic exchange system for portable stations

Details Electronic exchange system for portable stations Electronic exchange system for portable stations

1995-09-19

1999-11-02

Chin, Wellington

Telecommunications

Radiotelephone system

455412, 455550, 455555, 455554, H04Q 700, H04Q 720, H04Q 724, H04Q 726

Patent

active

059786671

ABSTRACT:
An electronic exchange system comprises an electronic exchange system for private branch exchanging, multifunctional telephone sets operating as wired extension terminals, public network main lines of a public telecommunication network that are cores for connecting the central telephone electronic exchange system and said electronic exchange system, leased or private lines, cell stations, a control terminal and portable stations of radio slave units for the cell stations. If an incoming call is not forwarded to the called portable station because the portable station does not respond, the incoming call is stored in a predetermined memory arranged with the electronic exchange system, which connects the portable station and the calling terminal once the portable station restores it communicable state.

REFERENCES:
patent: 5329578 (1994-07-01), Brennan et al.
patent: 5579372 (1996-11-01), Astrom
patent: 5592533 (1997-01-01), McHenry et al.

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