Emergency call system

Claim 1

An emergency call apparatus system including a portable emergency call device having an emergency call switch by actuation of which an automatic call code signal is transmitted and a corresponding stationary emergency call receiver equipped for receiving an emergency call signal from said portable device, recognizing said automatic call code signal as showing a need for calling a telephone number over a telephone network for alerting a preselected telephone party to the presence of the emergency call, characterized in that said emergency call receiver is a receiver in a base station (B1) of a cordless telephone local system (C1), which base station (B1) is connected to a telephone network (F), and said base station (B1) is equipped with a plurality of speech communication channels for short-code access by radio transceivers to said base station and a special channel inaccessible to normal speech communication of users of the system and comprises: means for recognizing an identifying code, which identifies both said base station and said portable emergency call device and which code forms part of said automatic call code signal, and for recognizing the presence of a remote emergency call request code which call request code also forms part of said automatic call code signal; means in said emergency call receiver for control of a response to a call from said emergency call device, said response including activation of and entry into said special channel, said receiver control means including, in its control logic, an electronic memory (51) for storing a sequence of telephone numbers to be called in response to an automatic call code signal received by said emergency call receiver from said portable emergency call device, and for responding to said automatic call code signal by calling said stored numbers in sequence until an answering connection is established denoting at least an acknowledgement of receipt of the emergency call by a corresponding called party and said portable emergency call device (N1) comprises, in addition to said emergency call switch and means responsive to said emergency call switch for transmitting an automatic call code signal: means for generating, for said automatic call code signal, a code signal (IK) designating the identities of said base station (B1) and of said portable emergency call device and a code signal (SK) designating a radio-communicated emergency call which needs to obtain access to said special channel of said base station, and control means (13) for producing, during a said automatic call code signal, a continual repetition of at least part of said identification code signal (IK) of said portable emergency call device (N1).