Motorola H790 Quick Start Manual page 8

test your connection
Place the headset on your ear.
On one phone, dial the number you want to call and press Call/Send key.
Repeat for the second phone.
If your phones and headset are successfully connected, you hear ringing on the
headset.
For daily use, make sure your headset is turned on, and your phone's Bluetooth
feature is on. Your headset and phone will connect automatically.
pair & connect