Host radio telephone to directly access a handset NAM through a

Details Host radio telephone to directly access a handset NAM through a Host radio telephone to directly access a handset NAM through a

1997-11-03

1998-11-17

Cumming, William

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

455550, H04Q 732

Patent

active

058390510

ABSTRACT:
A cellular radio telephone system comprises a mobile cellular telephone (1) adapted to have a hand portable telephone (2) containing a number assignment module, i.e. a NAM (7), removably connected thereto. The mobile telephone (1) has a microprocessor (4) which can access the information stored in the NAM (7) of the hand portable telephone (2) either directly or via a memory 16 whereby the mobile automatically assumes the telephone number of the hand portable telephone when the two telephones are connected together. Hence a subscriber need only have a single billing account for both telephones. Also, the same mobile telephone may be used as a host at different times by any number of subscribers having their own hand portable telephones. Each subscriber will be able to receive his own calls and the charges for using the system can be levied to the appropriate subscriber's account.

REFERENCES:
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patent: 4677653 (1987-06-01), Weiner et al.
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patent: 5249018 (1993-09-01), Grimmett et al.
patent: 5249302 (1993-09-01), Metrolca et al.
DYNA TAC Cellular Mobile Telephone General Description, Motorola Inc., Technical Writing Services, Jun. 15, 1983, pp. 1-3.
Radio Shack, 1988 Catalog, pp. 2, 4, 5, Index p. 93.

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