the bluetooth telephone book(manual) is the one with the picture of the telephone booth on the front. You can download it from the BMW usa website I believe.
if you do have it . You have to pair your phone with it on the radio or nav.I
don't know if all phones are capable of pairing with that unit. It should also say TCU or telephone control unit , the one in the trunk. Its better to add it in some other fashion than doing the BMW retrofit if you don't have it as its a very expensive through BMW.
The phone symbol will appear as one of the selections from the radio I beliveve its the upper
left button on the radio but not sure,
http://www.e90post.com/forums/showthread.php?t=85149
better to add it with something like this
http://www.e90post.com/forums/showthread.php?t=201607