Here are instructions showing you how to reassign the headset to the base unit.

1. Place the headset on the charging base
2. Remove power from the charging base
3. Take headset off charging base
4. Hold the multi-function button (the one in the silver ring) for 4 seconds
5. The white light will flash 3 times and then flicker. When it begins flickering, let go.
6. There should now be no lights on the headset.
7. Place the headset back on the base and plug the power back in
8. Charge until the battery light is steady green and test the unit