Radio system with universal communication interface

(57) The summary wireless system (1, 12, 30, 33) is equipped with the walkie-talkie (1) which has a transmitting mode. The presto talk (PTT) switch (34) is arranged at the remote module (33), the remote module also equips the walkie-talkie (1) and the receiver which is involving with the transmitter which transmits a signal (37), and the receiver which answered opens the communications channel to a walkie-talkie. With this remote module (33), a PTT switch (34) can be arranged in a position highly convenient for an operator.