Method and Apparatus for Use in a Communications Network

摘要

A system and method in a telecommunication network for subscribing a first node to receive event update notifications from a second node. The first node sends a subscription message such as a SIP SUBSCRIBE message to the second node indicating that the first node wishes to subscribe to event update notifications relating to at least one type of event for a plurality of remote nodes of the network that have a predetermined association with the first node or alternatively the second node. In response, the second node generates future event update notifications and sends the notifications to the first node when the event notifications meet the criteria specified in the subscription message.