Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent
1988-11-04
1991-05-14
Dwyer, James L.
Telephonic communications
Having light wave or ultrasonic link for speech or paging...
Including fiber optic link within telephone network
379 40, 379 51, 379 63, H04Q 702
Patent
active
050162691
ABSTRACT:
In an improved cellular telephone network, which in the illustrated embodiment, is a roadside emergency callbox system, and in which each cellular callbox includes programmable circuitry for call progress processing, various tones transmitted in a telephone exchange are detected, decoded and responsively acted upon by the callbox according to program control. Each callbox is further capable of receiving and decoding DTMF tones from the telephone exchange to allow arbitary information, including alphanumeric information for local display at the callbox, to be received and interactively processed subject to on-site program control. Still further, each of the callboxes within the cellular network can be remotely programmed by a maintenance computer to call a newly designated telephone number in the event of activation of the callbox which can be utilized in the case of the need for extraordinary emergency response. Each callbox senses a plurality of operational conditions and status alarms which are reported periodically or in real time according to remote program control, including the option of remotely masking any alarm or reporting protocol.
REFERENCES:
patent: 4443661 (1984-04-01), Kubo
patent: 4724538 (1988-02-01), Farrell
patent: 4775999 (1988-10-01), Williams
patent: 4788711 (1988-11-01), Nasco, Jr.
patent: 4817126 (1989-03-01), Hendershot
patent: 4817190 (1989-03-01), Comroe et al.
patent: 4825457 (1989-04-01), Lebowitz
Dwyer James L.
GTE Mobilnet Incorporated
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