System for accumulating data over nondedicated telephone lines

作者: John R. Martin , Robert S. Block

DOI:

关键词: Accumulator (computing)Telephone lineClass 5 telephone switchTelecommunicationsDMS-100Dual-tone multi-frequency signalingAsymmetric digital subscriber lineComputer networkEngineeringClass 4 telephone switchTelephone exchange

摘要: A telephone data accumulator system for accumulating at a central station through connection of the to remote subscriber's station, including accumulator, by way nondedicated lines. The terminal is selectively conditioned generate dialing signals and thereby provide selective lines from subscriber station. preconditioning circuit such as timing means or broadcast signal decoder conditions provides short time window during day when there not likely be used normal calls, call made cause in thereafter transferred over

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