FIELD: physics; communication.
SUBSTANCE: invention relates to communication engineering. For this purpose an event related to availability of a terminal in a communication network is determined. A message which contains information on the event is generated. The message is used to provide information on availability of the terminal.
EFFECT: more efficient determination of presence of subscribers in a communication network.
40 cl, 10 dwg, 10 tbl
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| MULTIMEDIA ENVIRONMENT "PRESENCE" SERVER BASED ON INTERNET-PROTOCOL | 2002 |
|
RU2315436C2 |
