Is it a factoryfit telephone set up or is there a nokia type phone holder fitted on the dash?
A factory bluetooth setup on the late focus has voice control. On the volume control near the steering wheel there will be a small button on the top with "voice" beneath it. If you do not have that you will not have the foctory set up. Also if you press one of the phone buttons on the head unit and it says "mute" this is also an indication of the phone set up not being present. As if it does have it when you press the green button it will say "no phone" or "no phone detected" until you bond a mobile phone to the head unit.