ETSI - TS 187 005
Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); NGN Lawful Interception; Stage 1 and Stage 2 definition
|Publication Date:||1 June 2012|
The present document specifies the stage 2 model for Lawful Interception (LI) of TISPAN NGN services as specified by TR 180 001 [i.3].
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 for the NGN as specified by TISPAN.
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 [i.3] and where the NGN architecture is as specified in ES 282 001 . The present document takes account of the requirement to support dynamic triggering of interception.
A guide to the application of the handover specifications is given in informative annexes.
NOTE 1: Handover aspects are not specified in the present document but are described in TS 133 108 , TS 101 671  and TS 102 232-1 , TS 102 232-5 , and TS 102 232-6 .
NOTE 2: The present document assumes that the LEA/LEMF receiving intercept related information records from the NGN is able to decode NGN signalling streams and thus there is no definition in the present document of how to present NGN data in non-NGN formats.