No sweat. On the wall of the computer room was a single telephone with no dial: it was for incoming calls only. Just as I had in Mr. Christ’s computer lab in high school, I would pick up the handset and flick the switch hook, which had the same effect as dialing. Flashing nine times in quick succession, equivalent to dialing the number "9," would get me a dial tone for an outside line. Then I would flash ten times, equivalent to dialing "0," for an operator.