Method for detecting, on a telecommunication network side, the complexity, on the telecommunication network side, of a telecommunication link between two subscribers in order to determine the rate, and device for realising the same

An optimized detection of the complexity at the telecommunication network end for the purpose of charging is made possible by a telecommunication network and a method for detecting, at the telecommunication network end, the complexity, at the telecommunication network end, with respect to a desired or existing telecommunication connection between two subscribers for the purpose of charging,in which a subscriber is a mobile radio subscriber with a mobile radio and the other subscriber is a line network subscriber with a line network connection,in which the position of the mobile radio subscriber is detected,in which, in the case of a telecommunication connection of the mobile radio subscriber to a line network subscriber, whose line network connection, due to the line network connection dialing code, is located within a predeterminable local area surrounding the position of the mobile radio subscriber, a local call is detected,whereas, in the case of a telecommunication connection of the mobile radio subscriber to a line network subscriber, whose line network connection, due to its line network connection dialing code, is located outside the predeterminable local area surrounding the position of the mobile radio subscriber, a long-distance call is detected which is expensive compared with the local call.