Video telephone link to a service centre will provide many people with a reassuring link to family, friends and assistance. The user interface for all parts of the system must be consistent and easy to understand by ordinary people. Personal alarm system detectors can notify family, friends or emergency services. Rain detectors can give audible warning of skylights and windows left open. In more remote districts telecommunications links will enable some medical services to be provided direct to the home.
Fire detectors can send for help.
Audible feedback for blind users can help indicate whether such things as curtains are open or closed. Lights automatically turn off after pre-set time. On leaving a building, a verbal description or visual display of current status can advise about windows left open or electrical devices switched on.