You need to pair devices when powering up CK3x00 for the first time. Subsequently, all connections between your phone and CK3x00 are automatically established when both devices are within a few meters range of each other but you need to accept the connection on your phone first.
Procedure
Switch on your phone.
Go to START Menu.
Select the Settings icon.
Select the Connections command.
Choose Bluetooth Icon.
Click on TURN ON BLUETOOTH and MAKE THIS DEVICE DISCOVERABLE TO OTHER DEVICES In the MODE command.
Select the DEVICES command and click on NEW, your P50 is looking for the CK3100 kit.
Once you selected the CK3100 kit, enter the PASSKEY 1234.
Choose the name of your device
Select CK3100 as a HANDS-FREE device.
Your kit is now connected and you can see a headset icon on top of your P50 screen