Radio telephone system having a handset adapted to be removably

Details Radio telephone system having a handset adapted to be removably Radio telephone system having a handset adapted to be removably

1992-08-05

1993-11-02

Ng, Jin F.

Telephonic communications

Having light wave or ultrasonic link for speech or paging...

Including fiber optic link within telephone network

455 89, H04M 1100, H04B 138

Patent

active

052590186

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.

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