FIELD: physics, communications.
SUBSTANCE: invention relates to communication and more specifically to a method of transmitting data immediately after changing a speaker to at least one corresponding subscriber making a group call. The technical result is achieved due to that during a group call inside a mobile radio communication system which consists of at least one main mobile communication switching centre and at least one auxiliary mobile communication switching centre connected to at least one base station system, a group call uplink is allocated to a second subscriber in order to change the function of the speaker from a first subscriber to the second subscriber. After allocation of a group call uplink, transmission of data, especially group application data, to at least one corresponding group call subscriber is initiated through a group call control message formed by the second subscriber and transmitted over the group call uplink.
EFFECT: possibility of exchanging text data - messages when changing a speaker among group call participants.
13 cl, 2 dwg
