Over five million people use a standard (BT) line, but you could save money by making calls through a different supplier. Some people choose to switch to a deal which includes moving their line rental to a supplier, other than BT. This means they can save money on calls and get just one bill. This is known as Wholesale Line Rental (WLR). WLR allows alternative suppliers to rent access lines on wholesale terms from BT, and resell the lines to customers, providing a single bill that covers both line rental and telephone calls. Its introduction has been a significant stage in the development of competition in retail markets in the UK. A fully effective WLR product brings major benefits to consumers in terms of increased choice, innovation and lower prices. Consumers in all parts of the country have the opportunity to choose alternative suppliers who provide combined access and call services.