Self diagnostic system for cellular-transceiver systems with rem

Details Self diagnostic system for cellular-transceiver systems with rem Self diagnostic system for cellular-transceiver systems with rem

1998-09-25

1999-10-12

Loomis, Paul

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Testing of subscriber loop or terminal

379 1, 379 32, 455425, H04M 308, H04M 1100, H04M 322

Patent

active

059664282

ABSTRACT:
A self-diagnostic system for a checking all functions of a cellular-transceiver system having a cellular-interface unit, which interface unit couples a standard telephone set to a cellular transceiver, which interface unit converts the DTMF or pulse-type of dialing signals into digital format for transmission to the cellular transceiver, whereby the dialed number made on the land-type of telephone may be used to call a number over the cellular system. The present invention not only monitors and checks the proper functioning of the transceiver and associated power supply, and the like, but will also monitor and check the interface unit, and report the results to an off-site monitoring center by means of the cellular network.

REFERENCES:
patent: 5295178 (1994-03-01), Nickel et al.
patent: 5504800 (1996-04-01), Yehushua et al.
patent: 5781856 (1998-07-01), Jacobs et al.
patent: 5819177 (1998-10-01), Vucetic et al.

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