Some applications may need another external Bluetooth device to work. Most of you will use a Bluetooth headset for making a call in a convenient way.
Go to “Options ----> Bluetooth”.
Click Add Device in the screen’s menu.
A search will be performed and all Bluetooth devices in range will appear in that list.
Select the device you want to pair and if prompted, enter the passkey for that device.
By confirming that dialog the Bluetooth device you will see it appearing in the list.