Terry uses an Environmental Control system to control equipment in his home to enable him to be as independent as possible. Terry actually uses two different systems -- one system is controlled by his voice, the second system is controlled by a single switch. Terry combines these systems to ensure that he is able to access things like the telephone quickly and easily, despite having very restricted use of his arms. Environmental Control is a type of Assistive Technology (AT) -- technology that enables people to be independent and empowered. You can see more about this on the Barnsley AT team's website below.