I've got a Samsung Droid Charge. According to the Bluetooth Connectivity Centre, everything should work except for the call lists for Android 2.2.1. Actually, with phone firmware 2.3.6, call lists do work.

Trouble is the phonebook. Several of my most important phone entries don't show up at all, and there are large gaps in the data. For example my son's name is missing but there are alphabetic entries before and after his name, so I don't think it's a capacity thing. I do have probably 1000 or more entries, though.

Does anyone have a clue about this?

 

Noticed this also when I joined two iphones with iOS 5.x.x to the 2010 XF Premium, that the phone books were missing entries. Must be a firmware issue with the headunit. Is there a update?

 

Somebody suggested the car's hard drive may not have enough space for large address books.

 

I have no doubt that your phonebook is too big for the car's memory. For example, the unit in the XK can only hold 750 names/numbers.

 

Something worth checking: what names (or fields attached to names) have apostrophes? In my workplace, any address entry with an apostrophe forces the rest of the address book to be dropped from our syncing server.

I'd also check for any rogue characters in any of the address book fields, and as a test, remove (temporarily) any suspicious entries to see if this fixes the problem.