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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Schull; Jerome W.
Address:
Marietta, GA
No. of patents:
7
Patents:












Patent Number Title Of Patent Date Issued
5901201 Switch-based line continuity verification method and system May 4, 1999
In a security and alarm service environment, a method and system for verifying the continuity of a telephone line 317 connected to a subscriber terminal unit (STU) 310 at a customer's premises. The STU 310 is connected by telephone line 317 to a network interface 315 which is connected t
5535267 Telemetry system with improved verification of telemetry interface unit installation July 9, 1996
A telemetry system in which a telephone system of the telemetry system is adapted to provide automatic identification of the telephone number of a subscriber location at which a telemetry interface unit is installed and to utilize the identified telephone number in a procedure for verify
5521964 Visual message waiting indication in a telephone voice message system May 28, 1996
A telephone system which offers a voice message service and which enables visual indication of waiting messages at subscriber locations using suppressed ringing connections through the switching network of the system and in which acknowledgement signals are provided to the system by the
5452343 Telemetry access arrangement September 19, 1995
This invention relates to a method and apparatus for accessing customer meters and for controlling customer devices over a telephone line. A connection using only a single distinctive brief burst of power ringing or tone is established over a customer line between a central office and
5363431 Visual message waiting indication in a telephone voice message system November 8, 1994
A telephone system which offers a voice message service and which enables visual indication of waiting messages at subscriber locations using suppressed ringing connections through the switching network of the system.
5359641 Telemetry system with suppressed ringing connection October 25, 1994
An improved telemetry system in which suppressed ringing connections are established through a switching network to access equipment at subscriber locations. The control equipment for controlling the switching network is specifically adapted to include a set-up routine for identifying th
5243644 Telemetry access arrangement September 7, 1993
This invention relates to a method and apparatus for accessing customer meters and for controlling customer devices over a telephone line. A suppressed ringing connection is established over a customer line between a central office and customer station equipment. The connection is betwee










 
 
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