National Geographic : 1922 Jun
Guardians of the Circuits The telephone at your elbow seems so simple an instrument, it does its work so quietly and quickly, that it is difficult to realize the vast and com plex equipment, the delicate and mani fold adjustments, the ceaseless human care "behind the scenes" in the cen tral offices. Behind the scenes is the terminal of all the underground and overhead lines on the streets and highways. Here are the cable vaults; the great steel frames containing the thousands of separate wires and fuses for the subscribers' lines; the dynamos and storage batteries; the giant switch boards through which your telephone is connected with the other thirteen million telephones in the Bell System. And here, in charge of this equip- ment, are the guardians of the circuits -the wire chief and his assistants master electricians and experts in tele phony. Their first duty is the pre vention of "trouble." By day and by night they are constantly testing the central office equipment, the over head and underground lines, the sub scribers' individual wires. And when, from some cause beyond control, "trouble" does occur, nine times out of ten it is repaired before the tele phone subscriber suffers the slightest inconvenience. It is the skill of the men behind the scenes, together with scientific develop ment and construction, efficient main tenance and operation, which make it possible for you to rely upon the tele phone day and night. " BELL SYSTEM " AMERICAN TELEPHONE AND TELEGRAPH COMPANY AND ASSOCIATED COMPANIES One Policy, One System, Universal Service, and all directed toward Better Service "Mention The Geographic-It identifies you"