The beep line comes and goes among teen-agers all over the U.S.—a kind of electronic equivalent of the old-fashioned tree trunk on which ... much of the nation’s telephone equipment, every ...

So many people in the Lisle and Downers Grove area were connecting with on-line services about the same time that they were clogging the telephone trunk line capacity. It was more than just a ...

Wells discusses the effects of the rapid increase of the telephone service in Great Britain ... areas and subdivided into group areas. Major trunk lines connect main zone exchanges with London ...

A study by the state Public Service Commission found that competitive telephone companies supplied 6.47 percent of the local trunk lines in Michigan as of the end of last year, up from 3.99 ...