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The switch hook determines whether current
flows to the telephone, thereby signaling the central office that the telephone
is in use. The ringer responds to a signal sent by the central office that
causes the telephone to ring. As simple a device as the telephone, had a
mighty big impact on society during the 30's. This was due to the fact that, it
was during the 30's when telephone service became economically feasible and also
Men and women alike were captivated by the intrique and fascination of
talking to relatives and friends, miles and miles away. Not only did the
telephone pamper to individual woes, but it provided a very useful industrial
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