SERVICE BASED LAWFUL INTERCEPTION

摘要

The present invention relates to methods and arrangements in a telecommunication system to monitor information related to specified services in a service unaware node (ICE; GGSN) . The node handles Content of Communication (CC) associated with services (A, B) . The system comprises a Delivery Function (DF3) to which, Content of Communication (CCl, CC2) related to a target is received from the node (ICE; GGSN) . The method comprises the following steps: - Receiving from a requesting entity (LEMF) to the Delivery Function (DF3) , a request to delimit the received Content of Communication (CCl, CC2) according to not desired services (A) . - Parsing the received Content of Communication (CCl, CC2) according to not desired services (A) by a Packet Inspection Feature (PIF) associated with the Delivery Function (DF3) . - Forwarding Control Information (CIA) related to the not desired services (A) to the requesting entity (LEMF).