Fixed cellular technical with a distinctive dial tone to indicat

Details Fixed cellular technical with a distinctive dial tone to indicat Fixed cellular technical with a distinctive dial tone to indicat

1995-04-28

1997-10-21

Bost, Dwayne

Telephonic communications

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

Including fiber optic link within telephone network

379 40, 379 62, 379 65, 379 45, H04M 1100, H04M 900, H04M 1104, H04Q 700

Patent

active

056804393

ABSTRACT:
Of special application in cellular mobile networks that communicate this terminal, via radio, with a base station to provide services of voice and/or data communications to a number of subscribers and which, in addition to the basic communications service, also support an emergency call service performed through the terminal in question by dialling a certain number. This terminal comprises means (41) for generating user signalling tones and which also generate an emergency call dial tone, different from the other tones already present, when a call process is initiated by the subscriber (5) in the case where the fixed cellular terminal is only capable of making emergency calls.

REFERENCES:
patent: 4658096 (1987-04-01), West, Jr. et al.
patent: 4724538 (1988-02-01), Farrell
patent: 5016269 (1991-05-01), Rogers
patent: 5161180 (1992-11-01), Chavous
patent: 5203009 (1993-04-01), Bogusz et al.
patent: 5377256 (1994-12-01), Franklin et al.
"Application of mobile technology in the access network" by J.M. Garcia Aguilera, published in the Workshop Proceedings of the 23rd European Microwave Conference held in Madrid on Sep. 10, 1993, pp. 124-125.

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