1945:
Telephone Industry
Archives consist of articles that
originally appeared in Collier's Year Book (for events of 1997 and earlier) or
as monthly updates in Encarta Yearbook (for events of 1998 and later). Because
they were published shortly after events occurred, they reflect the information
available at that time. Cross references refer to Archive articles of the same
year.
1945: Telephone Industry
Wartime Communications.
Telephone activity continued at its highest tempo
throughout 1945. Until war ended, the industry concentrated on supplying all
the communication facilities and service the government, the armed forces and
war industry required. At no time throughout the conflict did a telephone need
of any of those agencies go unfilled. The policy of supplying war-essential
communication needs first, however, made it impossible to meet concurrently
every telephone requirement of the home front.
Home Service.
Orders for new service that could not be filled
because of the lack of telephone instruments, switchboards and wire reached
above 2,100,000 by war's end. But the manufacturing plants of the industry,
with the cancellation of war orders, proceeded to swing as swiftly as possible
into the production of peacetime telephone facilities. By the end of the year,
more than a million telephone instruments, together with telephone
switchboards, wire and cable, had been produced for normal use. But, because
manufacture and installation of complex switchboard and dial switching
equipment requires a great deal of time and highly skilled work, it was
expected that it would take many months before all orders held for lack of such
equipment could be filled.
Telephones in Use.
By the end of September, 1945, the number of
telephones in use in the United States numbered some 27,220,000. About
21,883,000 of those were owned and operated by the Bell System. The balance was
served by more than 6,100 independent telephone companies and more than 60,000
rural systems, nearly all of which interconnect with the Bell System to provide
nationwide service.
Local Calls.
More local calls were handled in the twelve months
ending September 30, 1945, than in any previous year. During that period,
approximately 103,900,000 local calls per day (average) were made, compared
with 101,300,000 per day for the previous twelve months.
Long Distance Calls.
A record also was made in the volume of long distance
calls. For the year ending September 30, 1945, toll and long distance calls
averaged about 4,800,000 daily, compared with 4,400,000 per day for the
previous twelve months. The American Telephone and Telegraph Company reported
that during the first ten months of 1945, a total of about 162,900,000 calls
was completed over the longer circuits, compared with approximately 145,800,000
during the first ten months of 1944.
Time Restrictions.
This increase in the number of long distance calls
occurred without the telephone companies being able to add commensurately to
the equipment required to handle it. Consequently, the companies found it
necessary to continue seeking voluntary cooperation from the public in
restricting the use of long distance service. When the circuits were
over-crowded, users were asked to limit their calls to five minutes. Patrons
also were requested to refrain from using the lines from 7 to 10 p.m. in order
to give service men and women an opportunity to call home. Essential calls
directly concerned with the military or with public health and safety continued
to receive priority handling so they would go through without possibility of
delay.
During the first ten months of the year, connections
on calls made over substantial distances were completed on an average of 3.4
minutes with connections on 84 per cent being made while the caller remained at
the telephone.
Research and War Production.
Radar.
Some of the wartime activities of the research and
production units of the telephone industry were disclosed publicly following
the ending of the war. It was revealed that telephone laboratories were very
largely responsible for the development of radar, as well as improved
telephonic and radio combat communication equipment. Telephone factories in
turn manufactured those complex devices in great quantities. One telephone
manufacturer whose factories were devoted almost exclusively to war production
was disclosed as the largest single source of radar, supplying more than 56,000
sets. The same organization also turned out more than 1,600 electrical gun
directors and computers; more than three-quarters of a million radio receivers
and nearly a half-million radio transmitters; more than 1,700,000 microphones
and 1,400,000 headsets; more than 4,300,000 miles of wire in cables. That
production was, of course, in addition to the great quantities of field
telephones, switchboards and field wire supplied to the armed forces.
Telephone Developments.
Construction Program.
Great progress in telephone communication was
indicated for the immediate future. For example, during the year the Bell
System announced a $2,000,000,000 construction program that not only will
provide the facilities needed to satisfy present backed-up demand, but will
advance a number of developments expected to contribute importantly to
telephone communication of the future.
Developments in Television.
The telephone industry's coaxial cable program went
forward, with nearly 1,750 miles of cable placed in the ground by the end of
1945. Coaxial is a unique type of cable consisting essentially of a copper
conductor within a copper 'pipe,' the latter serving as both a shield and a
return conductor. One pair of coaxial conductors will transmit as many as 480
telephone conversations simultaneously, without mutual interference. Coaxial
also will transmit television pictures effectively. The Bell System planned to
complete several thousand more miles of coaxial cable within a few years. This
will not only provide additional circuits for telephone conversations; it can
be made the basis for a nation-wide television network.
Radio relay as a method of telephone and television
transmission also was being studied by the telephone industry and relay systems
were under construction between New York and Boston, and between Chicago and
Milwaukee. By this method, microwaves are relayed from station to station, the
relay points being about thirty miles apart. If experimental use proves
successful, such a system of transmission could be made a part of the
nation-wide telephone network, especially in areas where wire construction is
economically impracticable. Radio relay also is expected to be a suitable
transmission medium for television.
Direct Dialing System.
Direct dialing of any telephone in the country by any
operator, without assistance, was materializing. Automatic switching equipment
was being installed in toll offices and a national numbering plan was being
evolved. Telephone people expect that within the next decade direct dialing of
any telephone by operators will be standard practice.
Mobile Radio Telephones.
Mobile radio telephone service also
came a step nearer reality in 1945 when the telephone companies began
installation of experimental equipment at several points. With that system in
operation, a person in a radiotelephone-equipped vehicle will be able to
converse with anyone at any other telephone.
Rural Telephone Expansion Program.
Rural telephone service will receive a boost from the industry's
expansion program. Although more than two-thirds of all farm families already
were within reach of present telephone lines, new economical line construction
methods were being utilized to extend the service to all rural areas. Telephone
engineers experimented with the use of rural electric power lines for
transmitting telephone calls, and the development of short-wave radio was
expected to provide a way of bringing telephone communication to persons in
remote areas.
Overseas Calls.
Overseas telephone service, limited during the war
principally to government and press calls, was reopened to most points for
general use. With complete restoration of overseas service, it will be possible
to reach almost any telephone in the world from any telephone in the United
States.
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