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Bluetooth USB Dongle BT40

User Guide

This Bluetooth USB dongle BT40 adds Yealink phones 

(Bluetooth-enabled) connectivity to a wide variety of 

Bluetooth Headset, compatible with Bluetooth 

specification V4.0 and backwards compatible with 1.1, 

1.2, 2.0 and 3.0.

Packaging Contents

Ending Calls

Troubleshoothing

The following items are included in your package. If 

you find anything missing, contact your system 

To end a call:

Why can’t the phone detect the Bluetooth headset?

Why there is a noise?

With the Bluetooth headset paired and connected, press the 

multifunction key on the Bluetooth headset to end a call.

Ensure the Bluetooth headset is turned on.

Ensure the Bluetooth headset is in pairing mode when the 

phone is searching for Bluetooth headsets.

Check the battery level. If the battery level is low, charge 

the Bluetooth headset.

Ensure the Bluetooth headset and the phone are within 

the working range of 10 meters (32 feet) and there is no 

obvious interference (walls, doors, etc.) between them.

Copyright     2016 YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD

www.yealink.com

USB Dongle

User Guide

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