FIELD: electronic communications. SUBSTANCE: device has several mobile handsets with radio communication which are connected through radio channels to communication network, which also has stationary communication nodes. Exchange of test and control signals between stationary node and mobile handsets is achieved by means of at least one signal channel, which also serves as for establishing physical connection. Second signal channel provides transmission of data (short system messages) which are independent from connection restoration. Device for early break of communication serves for cancellation of physical connection is used in autonomous mode and is fired when this concerns level of data transmission channel (level 2), when control unit of first signal channel detects connection loss. EFFECT: increased functional capabilities. 12 dwg
