Summary

14:40:17:00,Men listen to earphones, Man demonstrates how phone works, Group picks up receivers, listens, Man listens on headphones, Man with display shows how phone works, Woman listens on headphones, Dramatization of Alexander Bell demonstrating phone, Montage of telephone evolution, Montage of switchboards, Montage of phone lines, Man at desk at work, Men in office discuss chart, Men in office go over plans for switching system, Men dial old phone, Phone switch switching, Men go over plans for switching machine, Men work on switchers in phone company, Men unload boxes from truck, Phone workers install switches, Bank of operators, Operators patch calls, Man on cherry picker, services phone line, Operator at work, Man talks with people in front of house, Men installing phones, Shots of rural America, Phone lines by road, Men install phone lines, Men with goggles in test lab, Load of metal poured from furnace, Men stretch hot metal wires, Men with drill, dig to set telephone poles, Telephone truck on road, Telephone poles, View of clouds from plans, Television tower, Wireless tower, Bulldozers unroll cable, Map shows highway of phone lines, Woman opens blinds in morning, Woman sets watch by mantle clock, Woman makes call, Woman talking on phone, Phone company switching machine, Typing machine records bill, Punch card computer, Machine types up bill, Men work with computers, Hen look over switching system, Men and women manufacture switching components, Man stencils Western Electric on box, Bank of operators, Man makes call on old phone, asks for long distance, Montage of operators patching long distance through, Man on phone, Operator switches lines, Shot of phone ringing, Men at meeting, Shots of phone switching equipment, Man on pay phone, Girl on phone, Hands at switchboard, Bank of operators at switchboard, Men install phone lines, Early TV with small screen, Men (guards) on early car phone, Train races past, Mother reads to little boy, Montage of phone workers, Montage of phone dialing