11.   The screen on one unit wobbled a bit, and the telephone switch had stuck shut.

12.   The technology placed Sprint at the cutting edge of telecommunications, making Sprint one of the first companies in the industry to bypass the central telephone switch.

13.   To get top speed, you must dwell no more than two miles from a telephone company switch.

14.   Until recently, companies buying telephone switches have had to buy the equivalent of preprogrammed mainframe computers from giants like Lucent and Nortel.

15.   With the splitting of area codes and changes in dialing rules, telephone switches and paging systems require constant reprogramming.