scope:

Scope & Purpose

The purpose of this Standard is to facilitate a TSP's compliance with the assistance capability requirements defined in Section 103 of CALEA [Ref 1]. This Standard defines capabilities to support LAES and the interfaces to deliver intercepted communications and reasonably available CII to an LEA when authorized. This Standard also defines a protocol for delivering CC and CII to LEAs. Compliance with this Standard addresses the "safe harbor" provisions of Section 107 of CALEA [Ref 1] and helps ensure efficient and industry-wide implementation of capabilities to assist LEAs.

The scope of this Standard is the set of capabilities to support LAES for VoIP and RCS² (Rich Communications Services) messaging services in wireline and broadband telecommunications networks and the interface(s) between a TSP and an LEA.

J-STD-025-B [Ref 2] has been used as a basis for development of this Standard.

This Standard is applicable to those voice services and RCS messaging utilizing wireline and broadband connections with packet-mode technologies - e.g., voice services over Internet Protocol (IP). This standard may also be applicable to switched voice services utilizing Voice over Packet and RCS messaging accessed via nonwired connections by agreement between the LEA and TSP. This version of the standard extends the capabilities in ATIS-1000678.v3.2015(R2020) and also provides corrections.

Other Lawful Interception standards meeting CALEA requirements and providing CALEA "safe harbor" for reporting Lawful Interception of specific services (such as VoIP or RCS) also covered in this standard may exist. TSPs reporting Lawful Interception for these specific services utilizing these other standards may omit support of the corresponding Lawful Interception reporting capability or capabilities defined in this standard while supporting the remainder of this standard.

² The RCS services, for which interception is defined in this standard, is based on the RCS Universal Profile. RCS Voice Services (e.g., RCS enhanced voice) as defined by GSMA, and activation of an intercept of RCS communications for an already established session are not addressed in this version of this specification but may be addressed in a future version of this standard. See RCC.71 - RCS Universal Profile Service Definition Document Version 2.4, October 2019, GSM Association [Ref 29] for more information on RCS Universal Profile.