Its a day-by-day situation with my X. Been through the 8830 World edition, 8330 Curve, 9500 Storm, 9630 Tour and now the 9650 Bold (Tour2.) Sometimes, its around 20 seconds, sometimes 3-5 minutes. Sometimes the calls transfer from phone to when I start the car, other times its minutes before the call & car recognize each other. As for the newer CIC systems, its almost immediate (at least with each loaner that I have tried it on.)

I can't speak about the address book, or the sync as far as fixing them. What I can tell you is that with each phone, the sound got more crisper and clearer. With the Tour, there was a crackle when people spoke. With the Curve, each time I made a phone call, the center speaker would crackle when the car and phone would make the connection.

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