Dealer install PTI: Bluetooth phone support only. You can pickup/drop calls from streering wheel and make calls using voice tags stored in the vehicle voice recognition system. That's it.
Factory PTI: Bluetooth & cradle (with select phone). Same functionality as above, but you also can use the keypad on radio, and if you cradle your phone... phone book & call log access from the stereo head unit, phone charging & external antenna.
"Call Waiting" and "3-way Calling" doesn't work over Bluetooth, either.
If you want to check Bluetooth compatibility with your phone, drop by a dealer and try it on a demo car... even a 05+ Range Rover (same core design, different UI).
In summary, you can do a lot better/cheaper with a 3rd party solution... especially if you don't have a dockable phone.