Airfone was an air-ground radiotelephone service developed by MCI founder John D. Goeken, and operated under the names Airfone, GTE Airfone, and Verizon Airfone. Airfone allowed passengers to make telephone calls (later including data modem service) in-flight. Airfone handsets were often located in the middle airliner seatbacks, with two handsets per row for 6-wide coach seating configurations, and more or less depending on the aircraft layout and fare class.