Unfortunately, the 2007 Toyota Camry did not come standard with Bluetooth connectivity. You can't turn on Bluetooth in a 2007 Camry because it wasn't originally equipped with the technology.
However, you can add Bluetooth functionality to your 2007 Camry with an aftermarket Bluetooth adapter. These devices typically plug into your car's audio system and allow you to connect your phone wirelessly.
You can find these adapters at most auto parts stores or online retailers.