 
Connect the Headset
To allow hands-free operation, you can connect a compatible 
headset with a standard 2.5-mm plug to your device.
Warning: When you use the headset, your ability to hear
outside sounds may be affected. Do not use the 
headset where it can endanger your safety.
1. Plug the headset connector into
the 2.5-mm headset jack on the 
left side of the device.
2. Place the headset in your ear.
With the headset connected, 
you can make, answer, and end 
calls as usual.