• Once the handset is lifted, audio communication is established between the handset and the monitor location. Priority Call Button This button is used together with the Talk Button and Monitor Button to disable the microphone at the camera. Normal use would be to cut out unwanted outside noise during conversation heard at the main unit. Press the “Talk Button” and the “Monitor Button”. • Lift the optional handset (VSA4S) to initiate all three calling devices • Press the “Priority Call Button”.

13) Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. 2 Table of Contents Illustrations of Cameras Illustration of Model VSM4 Monitor . . . . . . . . . . . . . .3 Monitor Station Controls . . . . . . . . . . . . . . . .