All remote unit management and audio downloads are accomplished using a standard PC, WinLink Communications Appliance (WCA), and the WinLink™ controller software suite. When a download is needed, the WCA dials the remote TELink unit and transfers audio and unit configuration settings over standard phone lines. TELink’s integrated callback features combined with WinLink’s powerful scheduling abilities provide great flexibility and convenience in loading units and managing the customer base. Loads can be initiated on demand, scheduled for a specific date and time, or you can instruct remote units to call the controller at a future date and time and automatically load new audio.