Method for demand channel change for a radio telephone

Details Method for demand channel change for a radio telephone Method for demand channel change for a radio telephone

1996-01-31

2000-12-26

Cumming, William

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455454, 455464, 455517, H04Q 720, H04B 700

Patent

active

061672602

ABSTRACT:
A radiotelephone system (100) includes a radiotelephone (102) and a central device (104) that communicate via radio frequency (RF) signals. The radiotelephone (102) includes a user interface (114) which permits the user to request a channel change by the central device. A signal is communicated to the user if a channel change is denied. A channel scan can be conducted by the radiotelephone to identify a new channel.

REFERENCES:
patent: 5408684 (1995-04-01), Yunoki et al.
patent: 5418839 (1995-05-01), Knuth et al.
patent: 5463659 (1995-10-01), Nealon et al.
patent: 5768345 (1998-06-01), Takebe et al.
patent: 5774805 (1998-06-01), Zicker
patent: 5794156 (1998-08-01), Alanara
patent: 5901357 (1999-05-01), D'Avello et al.
Mouly, Michel and Pautet, Marie-Benadette, "The GSM System for Mobile Communications", 1992, pp. 3237-342.
Motorola, "Secure Clear.TM. Cordless Telephone Model 550" Owner's Manual, Apr. 2, 1993, pp. 16-17.

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