Automatic telephony; a comprehensive treatise on automatic and semi-automatic systems (1921)
Smith, Arthur Bessey, b. 1875, Campbell, Wilson Lee · New York : McGraw-Hill · leaf 151
ached the top of its motion. Again, the re-ceiver cord may interfere with easy removal of the receiver. Calling devices now in use require that the subscriber shall pull thedial around to the finger stop and let it go, not interfering with its returnmotion in any way. If the user fumbles at the… … Clerk Fig. 127.—Special second selectors to care for preliminary impulse. properly. Improper use of the dial is comparable to improper speakingof the call number to the operator of a manual exchange. It is neces-sary and reasonable to ask people to speak clearly and distinctly to theoperator. It is…
Telephone
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