[. . . ] This Quick Start Guide contains instructions for setting up and using your Savi D100/D100-M USB adapter with your Savi headset. [. . . ] Connect the base power supply into the power jack on the charge plate. Press the volume up button on the headset for three seconds until the headset indicator light comes on. When the indicator light on the USB adapter becomes solid green, the headset and the USB adapter are subscribed to each other. While wearing your headset, press the call control button on the headset. The USB adapter indicator light will flash green indicating a radio link is active with the headset. Adjust the receive and transmit volume to comfortable levels using the volume control in your softphone or UC application audio set up. [. . . ] --Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. [. . . ]