1. Open Settings
2. Open Connected Devices
3. Open Bluetooth and then turn on the switch
4. Choose Pair New Device (Options key for XP3)
5. Select the device to pair to
6. If needed, enter in the pairing code on the other device, and Allow Access to transferring Contacts
7. Open Contacts on the phone with the list
8. Press and hold on contacts to select contacts then Select All (XP3 options key)
9. Share via Bluetooth (Options key XP3)
10. Accept file transfer on the other device and open with Contacts when complete

If you need any further assistance with this question, please contact the Sonim Customer Experience Center at 1-833-MY-SONIM (1-833-697-6646) or email us at [email protected].  We are open 24 hours a day, Monday-Friday and we will further assist in troubleshooting.