The Bluetooth-compatible cell phone to be connected to the main unit must be compatible with the following specifications. (However, depending on the model of the cell phone, some of the functions may be limited.)
Bluetooth Specification Ver.2.0
HFP (Hands
Free Profile) Version 1.5:
Profile for connection to Bluetooth-compatible
hands-free devices
OPP (Object
Push Profile) Version 1.1:
Profile for transmission of
address book and schedule