3GPP Scout / Specifications

Specification

3GPP TS 33.107: 3G security; Lawful interception architecture and functions

Published 2026-11-05Updated 2026-11-05

At a glance

Title
3G security; Lawful interception architecture and functions
Newest version
V19.0.0 (Rel-19)
Versions indexed
5
Newest per release
Rel-15: V15.6.0 (2019-06-17); Rel-16: V16.0.0 (2020-07-09); Rel-17: V17.0.0 (2022-03-31); Rel-18: V18.0.0 (2024-04-03); Rel-19: V19.0.0 (2025-10-02)

In plain words

TS 33.107 describes architecture and functional requirements within a Third Generation Mobile Communication System (3GMS) and the Evolved Packet System (EPS). "The present document shows the service requirements from a Law Enforcement point of view only." Its functional architecture includes reference configurations for lawful interception, with the circuit-switched configuration shown in figure 1a.

Source: 3GPP TS 33.107 V19.0.0, clause 1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/33_series/33.107/33107-j00.zip

Newest version in each release

ReleaseNewest versionIn the archiveTSG meeting
Rel-19V19.0.02025-10-02TSG SA #109
Rel-18V18.0.02024-04-03TSG SA #103
Rel-17V17.0.02022-03-31not recorded
Rel-16V16.0.02020-07-09not recorded
Rel-15V15.6.02019-06-17TSG SA #84

Source: 3GPP specification archive, versions indexed by 3GPP Scout. Each version links its official file.

Meetings behind the latest versions

Plenary meetings:

  • TSG SA #109 is recorded for V19.0.0 (Rel-19)
  • TSG SA #103 is recorded for V18.0.0 (Rel-18)

Source: 3GPP CR database and specification archive, as indexed by 3GPP Scout.

Sources

  1. 3GPP TS 33.107 V19.0.0, clause 1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/33_series/33.107/33107-j00.zip
  2. 3GPP TS 33.107 V19.0.0, clause 4. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/33_series/33.107/33107-j00.zip

How this page was made

The facts box and the tables come straight from the 3GPP specification archive and CR database as indexed by 3GPP Scout. An AI model (GPT-6 Luna) wrote the paragraph and named the source of each sentence. Code checked every quote word for word against the stored source text and every number against the cited source. A second AI model from another company (Claude Opus 5.5) reviewed the paragraph against the same sources. The 3GPP documents themselves govern.