The BT Duet 20 corded telephone a Call Indicator Light, is wall mountable, has call waiting and a redial button.
£7.64
The BT Diverse 6110 has a battery life that lasts for 13 hours of talk time or 170 hours on standby. It has a range of 300m, it has changeable ringer melodies, a secrecy button, last number redial, a backlit display and can be used to make conference calls.
£26.01
The BT Studio 1100 has a ten number memory, caller display with ten call list and has a broadcast range of 50 meters indoors and 300 outside.