Indicating method for indicating to a person wishing to make a communications link that the link cannot be made, whereby a series of functions are carried out be the calling terminal to establish a communication failure

摘要

Method for transfer of data indicating when a desired comminations connection is not made between a caller terminal (A) and a receiver terminal (B). According to the method, a series of functions are undertaken by the caller terminal when an initial connection is made which then indicate that a connection cannot be made : An independent claim is made for a system for indicating to a caller or a person desiring to make a communications link, that the link cannot be made.