The problem is this.
MS can claim that you can't do all this stuff over BT, but you can.
I had a Samsung i600 with a BT adapter and a Jabra BT200 headset.
The quality was fine to do everything.
I could do Digit Dial, Dial by name, Contact List, etc....
Funny, when I use my old BT adapter on the 700w along with my BT500 things work quite nicely.
Let's see, that would be A/D -> BT tx -> BT rx -> D/A -> A/D to the phones hardware and voice stack.
Much worse than just going to the phone.
Just bull. They should say, they just didn't do it and quit making excuses.
I know it works fine through BT because you can do it with a BT adapter.
Good intentions will always be pleaded for every assumption of authority. It is hardly too strong to say that the Constitution was made to guard the people against the dangers of good intentions. There are men in all ages who mean to govern well, but they mean to govern. They promise to be good masters, but they mean to be masters. -- Daniel Webster