User Guide

LED LED State Indication
Solid green Connected to PC audio (default condition)
Flashing green Incoming PC call
Flashing yellow Active PC audio on hold
Flashing green Incoming desk phone call
Solid green Desk phone audio connected
Flashing yellow Active phone audio on hold
Both icons ashing
green for 2 seconds
MDA220 is booting up – once complete both LEDs will be off
if no headset is connected. If a headset is connected the PC
icon will remain lit solid green.
Solid red Firmware update in process – follow rmware update
instruction to clear once complete.
Solid red Over current condition – using HL10 without power supply.
Unplug MDA220, add power adapter, re-plug MDA220 to
PC.
Flashing red Headset fault – replace headset and power cycle the
MDA220.
When you press one of the two buttons, you are opening a phone line/audio channel.
Depending on the circumstances, you won't necessarily hear a dial tone until you've
dialed from your phone. The buttons allow you to switch to a different phone line/
channel.
MDA220 LED
Indicators
4