Funny thing I have determined is that the contacts on my iPhone are compartmentalized. The ones for work, about 1,700 are not able to transmit to the system via Bluetooth. the contacts listed under the "Group" iPhone are able to pass through the and show up. I don't think I did anything odd other than what the instructions said to do. I have asked Apple "Genius" and they tell me that the work contacts are actually on our Exchange server and cannot even be saved over without converting them to PST and saving them in Outlook at home. This is a pain in general....but, the good news is that the contacts in my phone under the "group" iPhone, they can be seen in the phonebook in the Yo. Go figure.