Telephone conversations can be a challenge with other devices. The hearing instrument next to the telephone receiver must adjust to hear the incoming voice on the line. However, if the opposite instrument uses the same settings, that volume setting can pick up distracting noises elsewhere in the room. Sonic’s Auto Telephone listening program works in tandem with Binaural Coordination. When engaged, the program automatically recognizes the non-telephone ear and reduces gain or mutes the input on that side.