Telecommunications – Radiotelephone system – Including private cordless extension system
Patent
1996-05-30
2000-07-25
Tsang, Fan
Telecommunications
Radiotelephone system
Including private cordless extension system
455 312, 455 381, 34082544, H04Q 726
Patent
active
060945834
ABSTRACT:
It is an object of the invention to allow a user to call a radio selective calling receiver (pager) near a room or house within a range of several hundred meters from a cordless telephone master or subsidiary unit without using a general public telephone line and without being charged for the call. The paging system includes a pager, and a cordless telephone master and subsidiary units capable of calling the pager.
REFERENCES:
patent: 3976995 (1976-08-01), Sebestyen
patent: 5040204 (1991-08-01), Sasaki et al.
patent: 5428666 (1995-06-01), Fyfe et al.
NEC Corporation
Sobutka Philip J.
Tsang Fan
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