Help? What do the different switches mean on my Plantronics Wireless unit? Q: On the Plantronics Wireless Units (like the CS55) what is the A-B-C-D switch on the bottom of the unit and the 1-2-3-4 switch on the back of the unit? Are these volume control buttons? A: The A-B-C-D switch is your Outgoing Microphone volume (how people hear you): A is the lowest, D is the … Continued
Q: Is a handset lifter required to use a busy light with a wireless unit? A: No, the busy light can be plugged into the bottom of the wireless base.