Express Newsline

Express Newsline

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The expansion of STD has greatly reduced the dependence of the telecom system on manual operators, most of whom are ... Says V.S. Arunachalam, scientific advisor to the defence ministry: aquot;We get an STD line on the second or third attempt at least. ... Voice mail: The central voice mail facility, which substitutes the individual phone-based answering machine, ... DOT, which had introduced an analog fax service in 1982 in 15 cities, opted for the digital in 1988 when it launched theanbsp;...


Title:Express Newsline
Author:
Publisher: - 1991
ISBN-13:

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