Hi Derek,
I'm anxious to know if you ever solved the 'dropped calls' issue. I have a 2009 Ford Edge with the 1.3 version of SYNC. My phone is a Samsung R610. Like your phone, I receive incoming calls long enough to know who is calling and then SYNC disconnects the call and "Call Ended" comes up on the display. I have deleted my phone from SYNC and re-paired it. Everything else seems to work beautifully except the annoying disconnects. Any solutions?