Using the intercom From the Hail/Fog/Int menu: Menu > Hail/Fog/Int. Select Intercom.(1)Select the handset you want to call. The selected handset will ring. Wait for the handset station to acknowledge the call. Press and hold the PTT button and speak your message. Note (1)Step not required when only 2 handsets are connected. Parent topic: IntercomNext topic: Responding to the intercom