METHOD FOR CONTROLLING PARTIES IN REAL-TIME DATA GROUP COMMUNICATION USING ACKNOWLEDGEMENT PACKETS

摘要

The invention relates to communications systems, and especially to real-time data (two-party or multi-party) communication in communications systems. A real-time data item is sent from a sending terminal to a number of receiving terminals over a communication system. In accordance with the present inven-tion, each receiving user terminal acknowledges the reception of the item by sending an item acknowledgement report after the end of the item. The ac-knowledgement report may be sent after a successful reception of the item, unsuccessful reception of the item or in both cases.