Your Bluetooth device must also support voice dialing. Please refer to your device’s manual for more information on this.
In order voice dialing to work through a Bluetooth device, you must first have paired your phone to a compatible Bluetooth headset. For more information on pairing Bluetooth devices, see the Bluetooth category.
If your device does support voice dialing, You can use keywords like "call <contact name> <contact type>". For example, "call John Smith home" will call John Smith's home number.