2ETSI.TS 101 331 V1.1.1. Requirements of Law Enforcement Agencies[S]. August 2001.
3ETSI.EG 201 781 V1.1.1. Intelligent Networks (IN) [S]. March 2000.
4ETSI.TR 101 514 V8.0.0. Digital cellular telecommunications system (Phase 2+): Lawful Interception requirements for GSM.[S].May 2001.
5FCC 02-108. CC Docket No. 97-213. Order on Remand, Released[EB/OL].http://hraunfoss.fcc.govledocs-public/attachmatch/Fcc-02-108A1.pdf washington,D.C.
6ANSI. J-STD-025-A. Lawfully Authorized Electronic Surveillance[S]. May 2000.
7IPCC. Lawfully Authorized Electronic Surveillance For Softswitch-based. Networks[S] .July 2003.
8ISC. Reference Architecture V 1.2[S].June 2002.
9Telecommunications security; Lawful Interception (LI); Handover Interface for the lawful interception of telecommunications traffic,ETSI ES 201 671 [S].
10Telecommunications security; Lawful Interception (LI);Requirements for network functions, ETSI ES 201 158 V1.2.1 (2002-04) IS].