BT 2700 Nuisance Call Blocker Cordless Home Phone With Digital Answer Machine 086905 BT 2700 Nuisance Call Blocker Introducing the new BT 2700 Nuisance Call Blocker Cordless Phone. A user friendly entry level DECT cordless phone and answer machine with the facility to protect your home from unwanted calls. Avoid nuisance and unwanted calls BT’s pioneering Nuisance Call Blocking technology is integrated in the BT 2700 allowing you to block incoming calls from up 50 specific numbers. The BT 2700 also comes with the convenient Do Not Disturb feature so that you can silence your home phone at certain times of the day or night for even greater protection against nuisance or spam calls.