3.One of the input or output points of a system that uses telecommunication facilities; for example, the telephoneset in the telephone system or the point where the business machine interfaces with the channel on a leased private line.
4.And when you call general enquiry lines such as 100, 1605 and 1711, you will be greeted by automated answering machines which give you step-by-step instructions on the numbers to enter on your telephoneset, to obtain the information you need.