Does anyone know how to use a tester? I bought the Turbo Tone. It has instructions, but I guess I don't understand them too well. I have a phone line with 4 pairs. I don't know which pair is active. I just want the device to tell me which is active. I see "NRM" and "REV". I suppose that stands for Normal and Reversed. Other than that I can't get something basic like is the line active or not?
- posted
16 years ago