Lawful Interception in an IP Multimedia Subsystem Network

摘要

A method and apparatus for providing lawful interception in an IMS network. A first node in an IMS network receives a message from a Lawful Intercept mediation system node instructing the first node to perform lawful interception on a target. The first node sends a subscribe request message towards a second node located in an IMS core network. The subscribe request message includes at least an identity of a service type to be monitored. The first node subsequently receives a notify message from the second node, the notify message including session information from which intercept related information can be derived. The first node then sends intercept related information towards the Lawful Intercept mediation system node.

主权项

1. A method of operating a node in an IP Multimedia Subsystem core network, the method comprising:
receiving from an IMS node located in an IP Multimedia Subsystem network a subscribe request message, the subscribe request message including at least an identity of a service type to be monitored; and sending to the IMS node, in the event that an event identified in the subscribe request message occurs, a notify message including session information from which intercept related information can be derived, wherein the node and the IMS node are geographically located in different countries.