ETSI - TS 187 005
Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); NGN Lawful Interception; Lawful interception functional entities, information flow and reference points
|Publication Date:||1 December 2006|
The requirement for provision of lawful interception for all Communication Service Providers (CSP) is described in TS 101 331  and the present document gives the stage 1 and stage 2 definition for provision of an interception capability in TISPAN NGN R1.
The present document specifies the stage 1 and stage 2 model for Lawful Interception (LI) of TISPAN NGN services as specified by TR 180 001  and covering the following services explicitly:
- PSTN/ISDN emulation services (non IMS); and
- IMS based services.
The provisions in the present document apply only when the target of interception is an NGN user identified as specified in TS 184 002 , and when the network supplying services on behalf of the CSP is an NGN as specified by TISPAN in TR 180 001  and ES 282 001 .
A guide to the application of the handover specifications is given in informative annexes.
NOTE: Handover aspects are not specified in the present document but are described in TS 133 108 , ES 201 671  and TS 102 232 .