Key communication system with central computer control - has pair of associated terminals with mutual dependence for certain communication modes

摘要

The terminal configuration has a pair of associated terminal apparatus with a mutual dependence, at least for certain communication modes. The interdependence activates a performance note ''call protection'' such that in one terminal a signal, corresp. to the call protection characteristic is written in an allocated memory section. If a call connection transfer is required between the two terminals, the signal referring to the existing to the call protection w.r.t. the second terminal, is evaluated by the computer control as ineffectively stored. In any other instance, with the call protection activated, the connection request from both terminals is automatically deflected to a preset other subscriber terminal. ADVANTAGE - Improved traffic possibilities in connection with call protection requests.