Will my supervised agents be alerted that I have started listening ? Mark Gibbons 18 July 2019 20:00 Updated No. Only you as a supervisor will hear a tone signaling “listen-in” mode after pressing the star code. Related articles What is Business Phone recording ? How do I configure Call Recording in my Business Phone service? How do I manage which users I can supervise ? When should I use Call Supervision ? How do I create a schedule?