FIELD: information technologies.
SUBSTANCE: method to control permitted time of conversation in service of direct telephone communication or teleconference using terminal and controller, includes a stage, at which, in response to received decision by controller to provide a permission by request for conversation, received from terminal, indication of permitted time of conversation is transmitted into terminal for provided packet of voice data. Besides, this indication is intended for use in terminal to track remaining permitted time of conversation during provided pack of voice data.
EFFECT: improved possibility for user to use systems of direct telephone communications and teleconference, and provision of possibility to know limitation of permitted time of conversation specified by network controller.
54 cl, 27 dwg
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