03969594 is referenced by 23 patents and cites 6 patents.

Line condition reporting and subscriber polling apparatus employs a central processor for accessing subscriber cable pair via one of plural interface circuits, a trunk selection matrix, a test or no-test trunk, and the subscriber's central office.

Subscriber lines may be seized in accordance with manual or automatically entered information via system input terminals, and an operative code-forming part of the input command, determines whether the system will operate in a line testing and/or polling (as utility meter) mode. In accordance with one aspect of the present invention, digital computer apparatus is employed both for data processing and assembling purposes, and also for circuit control. Further, such circuit control is advantageously effected by a dedicated microprocessor with ancillary instruction (ROM) and read-write (RAM) memories.

Title
Automated telephony testing and polling apparatus and system
Application Number
270058
Publication Number
3969594
Application Date
October 15, 1974
Publication Date
July 13, 1976
Inventor
Vito Mannino
Holbrook
NY, US
Errol Siegel
New York
NY, US
Vincent F Santulli
Manhasset
NY, US
John J Gazzo Jr
Commack
NY, US
Paul V DeLuca
Port Washington
NY, US
Agent
Philip D Amins
Assignee
Porta Systems Corporation
NY, US
IPC
H04B 3/46
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