FIELD: network systems which allow to perform information exchange sessions between a large quantity of users and devices in environment with packet commutation, possible use for providing information about presence of user.
SUBSTANCE: subsystem of telecommunication network, using Internet-protocol, for environment of applications and services, contains "presence" server and block which realizes function for controlling service call status, adapted for receiving registration messages, transferred from user equipment, and for further conduction of an individual registration transaction on "presence" server for user equipment.
EFFECT: ensured routing of registration messages.
34 cl, 9 dwg
