Information Technology - Telecommunications and Information Exchange Between Systems - Private Integrated Services Network - Specification, Functional Model and Information Flows - Call Interception Additional Network Feature
Edition 2004-12-01

Information Technology - Telecommunications and Information Exchange Between Systems - Private Integrated Services Network - Inter-Exchange Signalling Protocol - Call Interception Additional Network Feature
Edition 2004-12-01

Terrestrial Trunked Radio (TETRA) - Security - Lawful Interception (LI) interface (incl. Diskette!!!)
Edition 2006-07-01

Private Integrated Services Network (PISN) - Specification, functional models and information flows - Call interception Additional Network Feature (ANF) [ISO/IEC 15053 (2003), modified]
Edition 2004-03-01

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Call interception Additional Network Feature (ANF) [ISO/IEC 15054 (2003), modified]
Edition 2004-03-01

Information technology - Security techniques - Guidelines for processing the judicial telematics interception
Edition 2015-06-12

Telecommunications security; Lawful Interception (LI); Requirements for network functions.
Edition 2002-02-20

Lawful Interception (LI); Handover interface for the lawful interception of telecommunications traffic
Edition 2009-04-08

Terrestrial Trunked Radio (TETRA) - Security - Lawful Interception (LI) interface (Endorsement of the English version EN 301040 V2.1.1 (2006-03) as German standard)
Edition 2006-11

Private Integrated Services Network (PISN) - Specification, functional models and information flows - Call interception Additional Network Feature (ANF) (ISO/IEC 15053 (2003), modified) (Endorsement of the English version EN 301256 V1.2.1 (2004-01) as German standard)
Edition 2004-12