MONITORING A SUBSCRIBER

摘要

In order to deliver monitoring information without a centralized server, a multicast router is introduced into a network. A group is generated (5-1, 5-2, 5-8, 5-11) for a mobile station to be monitored, the group including a multicast group address and monitors of the mobile station registered (5-11) as members of the group. Monitored event information is transmitted to the members of the group by utilising a multicast functionality.