Private radio system for delivering incoming calls to a mobile s

Details Private radio system for delivering incoming calls to a mobile s Private radio system for delivering incoming calls to a mobile s

1993-02-03

1995-12-26

Kuntz, Curtis

Telephonic communications

Audio message storage, retrieval, or synthesis

379 59, 379 61, 455 331, 455 332, H04M 1100

Patent

active

054794838

ABSTRACT:
A private network system including mobile radio telephones is able to originate connection and terminate connection even when any of the mobile radio telephones are moved from one exchange where the position of the mobile radio telephone is registered to another exchange. In the private network system which comprises a plurality of exchanges for switching telephones, each of the exchanges includes one or more radio connection controllers for radio communicating with mobile radio telephones, and a plurality of mobile radio telephones connected through the radio connection controller to the exchange for switching, the radio connection controller has an area in which the controller can communicate with the mobile radio telephones. Each of the mobile radio telephones has detection means for detecting movement thereof from the area to a different area and position registration means, upon movement of the telephone to the different area, for reporting the position thereof to the home exchange through the radio connection controller, and each of the exchanges has determination means for determining whether or not a mobile radio telephone has moved from an area of radio connection controller contained in a different exchange and transfer means for transferring a terminating call to the different exchange when appropriate.

REFERENCES:
patent: 4833702 (1989-05-01), Shitara et al.
patent: 4843622 (1989-06-01), Yotsutani et al.
patent: 4879740 (1989-11-01), Nagashima et al.
Electronic Industries Assoc., EIA/TIA Interim Standard 41.3-A, Jan. 1991.
Straw Man for Automatic Roaming, EIA, Jun. 1985.

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