Yealink SIP-T27G User Manual page 28

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User Guide for the SIP-T27G IP Phone
Note
18
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3) Connect the optional USB flash drive
The USB flash drive should be purchased separately if required.
The USB port can also be used to connect the Bluetooth USB dongle BT40 or Wi-Fi USB dongle
WF40. The Bluetooth USB dongle BT40 and Wi-Fi USB dongle WF40 should be purchased
separately. For more information on how to use the BT40 and WF40, refer to
USB Dongle BT40 User Guide
4) Connect the power
You have two options for power connections. Your system administrator will advise you which
one to use.
AC power (Optional)

Power over Ethernet (PoE)

Yealink Wi-Fi USB Dongle WF40 User Guide
and
Yealink Bluetooth
.