ETSI - TS 133 108
Universal Mobile Telecommunications System (UMTS); LTE; Digital cellular telecommunications system (Phase 2+) (GSM); 3G security; Handover interface for Lawful Interception (LI)
|Publication Date:||1 April 2021|
The present document specifies the handover interfaces for Lawful Interception (LI) of Packet-Data Services, Circuit Switched Services, Multimedia Services within the UMTS network and Evolved Packet System (EPS). The handover interface in this context includes the delivery of Intercept Related Information (IRI) through the Handover Interface 2 (HI2) and Content of Communication (CC) through the Handover Interface 3 (HI3) to the Law Enforcement Monitoring Facility (LEMF).