re need to find out number to a phone line in article bd dea ecs umass edu alee ecs umass edu writes greetings situation i have a phone jack mounted on a wall i don t know the number of the line and i don t want to call up the operator to place a trace on it question is there a certain device out there that i can use to find out the number to the line thanks for any response al how about calling someone with the caller id service and have them call you back with the number richard cook e mail rcook gfx engga uwo ca elect eng fax
