This is the face behind one of Britain's most famous voices - whose company is guiding a QUARTER of the world's shopping population. Terry Green is the man who automatically guides queuing customers to 'cashier number three' in our post offices, banks and many High Street stores. The soothing tones of the 53 year-old are heard by an estimated 30 million people each month in some 8,000 outlets across this country. But the company Terry co-founded 25 years ago now controls queues for 1 in 4 people around the world - a staggering 1.75 BILLION people.