Help Bluetooth hands free issue

[doc1964]

I have had the galaxy S, S2 and now the S3 and feel that not one of them has had its Bluetooth handsfree work as well as any of my Nokias from years ago. I have had three or four different hands free kits for my car and none of them have allowed true hands free access to calls. My latest problem is that when I press the connect button on my hands free kit, it starts up S voice but the noise you usually hear when it starts up sounds garbled and when I say my contacts name it does not recognise it and just seems to pick some random command. If however I use the phone to dial a contact first then the handsfree works fine, it also allows me to press button on hands free and speak contact name in any subsequent call. As I said at beginning of post, I had Nokia phones years ago that all allowed the hands free kits to work perfectly.