FIELD: physics, communications.
SUBSTANCE: invention relates to communication systems. The method for push-to-talk communication, executed by a PT server, involves: reception of a publication message from the PT client, where the publication message contains invitation reservation information which shows invited PT clients who must be invited to the PT session, and contains reservation function conditions; sending a subscription message to another PT server to request status information of the other PT client designated as invited in the invitation reservation information; reception of a reply message from the said other PT server when, based on status information, the said other PT client can be invited to a PT session; and execution of the invitation procedure through communication with the PT client and the said other PT server such that the said other PT client is invited to the PT session.
EFFECT: increased efficiency of using resources.
12 cl, 5 dwg
