1. Check if 'AudioFeed' is enabled in the 'Basic Station Configuration' window, see chapter 'Basic Station Configuration'.
  1. Check that no 'AudioTalk' or 'Trigger Audio Channel' logic control input function has been configured in the logic control input, see chapter 'Logic control inputs – Connector'.
  1. Check that no 'Talk Button' has been configured on the virtual keypad configuration page. (‘Station’ >’Configure Virtual Keypad’)