Method and configuration for providing performance features for mobile subscribers via a communications network

A method of providing performance features made available to internal subscriber terminating lines in a communications system to an external terminal, the method which comprises:

• communicating between internal terminals and a communications system within a defined signaling protocol;
• providing a teleworking subscriber line module in the communications system;
• providing a teleworking computer for controlling the teleworking subscriber line module and connecting the teleworking computer to the teleworking subscriber line module via a local computer network;
• setting up a voice link between an external terminal and the teleworking subscriber line module of the communications system by signing on the external terminal with the communications system;
• transferring via the voice link control information input at the external terminal in the form of assigned DTMF signals to the teleworking subscriber line module;
• and
• identifying the DTMF signals received at the teleworking subscriber line module, converting the DTMF signals into terminal-oriented signaling information according to the defined signaling protocol, and transferring the converted DTMF signals to a control unit of the communications system via the teleworking computer.