The EJ-R provides a one-way ramp for putting line level audio signals on to a telephone line. Simply hook-up the EJ-R between the base of a telephone and the phone handset, then connect a line level audio signal via the 1/4” jack on the side of the EJ-R, and the audio signal will be placed on the telephone line. Then use an EJ-10 to take the signal off the telephone line on the other end.
