Answer your door or hold a conversation on the telephone from the safety and security of inside your home or even your garden without the need to run; to the door; Ideal for the security conscious, young people, the elderly and infirm or people living alone. All fixings included. Additional features: The wirefree Dual Function Door Intercom/DECT Telephone System can be expanded with up to 3 further DECT Telephone Handsets. Ideal for larger homes and for use in a garden office or outbuilding. 1 year.