Kommunikationssystem

摘要

The invention relates to a communication system, comprising a transmission network (1) for transmitting user data and control data, at least one user terminal (8, 12, 16) with an input element (9, 13, 18) for inputting call numbers, at least one user terminal unit (6, 10) which has an adjustable transmission characteristic and is switched between a user terminal and said transmission network, a recognition unit (33) which is connected to said transmission network, for recognizing certain call number constellations and giving certain control signals corresponding to call numbers, and a control unit (31, 32) which is switched between said recognition unit (33) and said user connection unit, for adjusting the transmission characteristic of said user terminal depending on the control signals provided by said recognition unit.