How to pair Sony ericsson Bluetooth Headset with a phone?

Topair the headset in automatic pairing mode (this only works the very first time you turn on the headset):

1. To switch on the headset, press and hold the Call handling button for 5 seconds, until you hear a beep. The Call handling button is located on the front of the headset.
2. The indicator light will now flash red and green, which indicates that the headset is "Pairing mode".
3. In the phone, you now have to add the headset to the phone's list of Bluetooth devices. For detailed instructions, click on Product Information/Getting Started in the left hand navigation menu, or use the phone's user guide.
4. You have to enter a Bluetooth passkey in the phone. The default passkey is 0000.

To pair the headset in manually pairing mode:

1. Press both VOLUME BUTTONS, (+) and (-), at the same time for 5 seconds until your hear a beep.
2. The indicator light will now flash red and green, which indicates that the headset is in “Pairing mode”.
3. In the phone, you now have to add the headset to the phone's list of Bluetooth devices. For detailed instructions, click on Product Information/Getting Started in the left hand navigation menu, or use the phone's user guide.
4. You have to enter a Bluetooth passkey in the phone. The default passkey is 0000.