Does my iPhone 4 work with Hands Free Profile (HFP)?

My new car is supposed to send/receive text messages via the new fandangled stereo/navigation unit. The manual says the phone must be compatible with "Hands Free Profile (HFP)" or Message Access Profile (HFP)". Does the iPhone4 use/have this? New car is a 2012 Subaru Impreza with the Nav system.
Thanks.

It supports HFP 1.5 (see http://support.apple.com/kb/HT3647).

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..The Charging System...
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TheEther...
p.s.
http://carljonard.com/2008/07/how-to-charge-your-iphone-3g-in-the-car/
p.s.s.
apple get your **** together... !

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