User and Traffic Data Retention in Lawful Interception

摘要

Lawful Interception (LI) management system for retrieving user and/or traffic data associated to a given target identity of a telecommunication network. The system comprises an Administration Function device and at least one Mediation/Delivery Function device. The LI management system comprises a first common handover interface to both a Data Retention Sources domain and an Intercepting Control Elements domain and a second common handover interface to at least one Law Enforcement Agency. The first common handover interface is configured to receive user and/or traffic data from both Data Retention Sources and Intercepting Control Elements.