BT Response 75 is a digital answering machine that records up to 36 minutes of messages. Plug it into the same socket with your phone and you won't miss another message, no matter whether you're too busy to pick up the handset or you are just currently out. Messages are recorded digitally - that means consistent quality, fast resetting, and no tapes to get tangled or worn out. If your answering machine is switched on and you are at home, your friends can 'beep' the machine to let you know it's them calling. If you still don't want to answer, they can leave a message. The Response 75 is also provided with the 1471 feature, which shows the telephone number of your caller - no matter whether he leaves a message or not. Message playback will help you discover the caller's number and time of the call.