Importance

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Abstract

An inbound telemetry device and method of operation thereof are provided in which the inbound telemetry device becomes activated should one or the other of two different events occur. The inbound telemetry device is located at a predetermined site and is coupled by a telephone line to a central host. When a real time clock within the device reaches a predetermined point in time, the device seizes the phone line and dials a predetermined telephone number and transmits collected data over the phone line to the central host or other station having a need for the information. The inbound telemetry device includes a ring counter which counts the number of rings in a particular call whether the call is from the central host or another telephone user. If the number of rings counted by the ring counter on a particular call exceeds a predetermined number of rings, then the device is activated to seize the phone line, dial the predetermined telephone number and transmit collected data from the site over the phone line to the central host.

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First Claim