Hello Direct Wireless Headset On-the-Phone Indicator

Hello Direct Wireless Headset On-the-Phone Indicator, Let people know you're on the phone before they attempt to interrupt you while you're talking on your wireless headset. Utilizes a bright red flashing busy light. Plugs directly into your wireless headset base. Works with GN9120 GN9330 GN9350 T5330 and MultiPoint headsets using A7010 Bluetooth hub.