Method and device for providing service features over a communication network

摘要

The method involves logging in an external terminal (KE1) to a communication system (PBX) on the ISDN B-channel. A data connection (DV) is set up between the external terminal and a tele-working subscriber connection assembly (SLMPX) of the communication system having a coupling unit (SLMPX). Terminal oriented signalling information are transmitted between the external terminal and the communication system via the data connection. The information is commonly provided of by a signalling protocol (Cornet-TS) between internal terminals (KE4) and the communication system.