How do you unregister a Bluetooth Phone from the Jag's Phone System?

My Bluetooth phone wants to pair to the Jag, but the Jag sees the Phone as already registered. I would like to unregister the phone and complete a new pairing process.

Thanks

 

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Typically, for these models, you hit ##3#*# then the dial button. The display should then read "Discover Me"

Passcode is 1313

 

That is correct. Pairing a new phone overwrites the old one.