SIST ES 201 671 V3.2.1:2019
(Main)The present document is step 3 of a three-step approach to describe a generic Handover Interface (HI) for the provision
of lawful interception from a Network Operator, an Access Provider or a Service Provider (NWO/AP/SvP) to the
Law Enforcement Agencies (LEAs). The provision of lawful interception is a requirement of national law, which is
usually mandatory for the operation of any telecommunication service.
Step 1 contains the requirements for lawful interception from a users (LEAs) point of view and is published in ETSI
TS 101 331 [1].
Step 2 describes the derived network functions and the general architecture (or functional model) and is published in
ETSI ES 201 158 [2].
The present document specifies:
• the generic flow of information as well as the procedures and information elements, which are applicable to
any future telecommunication network or service;
• the network/service specific protocols relating to the provision of lawful interception at the Handover Interface
(HI), for the following networks/services:
- switched circuit; and
- packet data.
The technologies covered in the present document are: GSM, TETRA, GPRS, ISDN, PSTN, fixed NGN (including
PSTN/ISDN emulation) and fixed IMS PSTN simulation.
NOTE: As new networks and/or services are developed, the present document will be expanded as the relevant
standards become available.
Zakonito prestrezanje (LI) - Izročilni vmesnik za zakonito prestrezanje telekomunikacijskega prometa
Ta dokument je 3. korak pristopa v treh korakih, ki opisuje splošni izročilni vmesnik (HI) za zakonito prestrezanje organov pregona (LEA) pri omrežnem operaterju, ponudniku dostopa ali ponudniku storitev (NWO/AP/SvP). Zakonito prestrezanje je zahteva nacionalne zakonodaje, ki je običajno obvezujoča za delovanje vseh telekomunikacijskih storitev.
1. korak vsebuje zahteve za zakonito prestrezanje z vidika uporabnikov (organov pregona) in je objavljen v standardu ETSI TS 101 331 [1].
2. korak opisuje izpeljane omrežne funkcije in splošno arhitekturo (ali funkcionalni model) ter je objavljen v standardu ETSI ES 201 158 [2].
Ta dokument določa:
• splošni pretok informacij ter postopke in informacije, ki se uporabljajo za vsa prihodnja telekomunikacijska omrežja in storitve;
• posebne protokole za omrežje/storitve, ki se nanašajo na zakonito prestrezanje v izročilnem vmesniku (HI) za naslednja omrežja/storitve:
– vodovno komutirana; in
– paketni podatki.
V tem dokumentu so zajete naslednje tehnologije: GSM, TETRA, GPRS, ISDN, PSTN, fiksni NGN (vključno z emulacijo PSTN/ISDN) in fiksna simulacija IMS PSTN.
OPOMBA: Ker se razvijajo nova omrežja in/ali storitve, bo ta dokument razširjen, ko bodo na voljo ustrezni standardi.
General Information
Standards Content (sample)
SLOVENSKI STANDARD
SIST ES 201 671 V3.2.1:2019
01-januar-2019
=DNRQLWRSUHVWUH]DQMH /, ,]URþLOQLYPHVQLN]D]DNRQLWRSUHVWUH]DQMH
WHOHNRPXQLNDFLMVNHJDSURPHWD
Lawful Interception (LI) - Handover interface for the lawful interception of
telecommunications traffic
Ta slovenski standard je istoveten z: ETSI ES 201 671 V3.2.1 (2018-05)
ICS:
33.030 Telekomunikacijske Telecommunication services.
uporabniške rešitve Applications
SIST ES 201 671 V3.2.1:2019 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST ES 201 671 V3.2.1:2019
ETSI ES 201 671 V3.2.1 (2018-05)
ETSI STANDARD
Lawful Interception (LI);
Handover interface for the lawful interception of
telecommunications traffic
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SIST ES 201 671 V3.2.1:2019
2 ETSI ES 201 671 V3.2.1 (2018-05)
Reference
RES/LI-00154
Keywords
data, handover, interface, Lawful Interception,
security, speech
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ETSI
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3 ETSI ES 201 671 V3.2.1 (2018-05)
Contents
Intellectual Property Rights ................................................................................................................................ 9
Foreword ............................................................................................................................................................. 9
Modal verbs terminology .................................................................................................................................... 9
Introduction ........................................................................................................................................................ 9
1 Scope ...................................................................................................................................................... 10
2 References .............................................................................................................................................. 10
2.1 Normative references ....................................................................................................................................... 10
2.2 Informative references ...................................................................................................................................... 14
3 Definitions and abbreviations ................................................................................................................. 15
3.1 Definitions ........................................................................................................................................................ 15
3.2 Abbreviations ................................................................................................................................................... 18
4 General requirements ............................................................................................................................. 20
4.0 General ............................................................................................................................................................. 20
4.1 Basic principles for the Handover Interface ..................................................................................................... 20
4.2 Legal requirements ........................................................................................................................................... 20
4.3 Functional requirements ................................................................................................................................... 20
5 Overview of Handover Interface ............................................................................................................ 21
5.0 General ............................................................................................................................................................. 21
5.1 Handover Interface port 1 (HI1) ....................................................................................................................... 22
5.1.0 General ........................................................................................................................................................ 22
5.1.1 Manual interface ......................................................................................................................................... 23
5.1.2 Electronic interface ..................................................................................................................................... 23
5.2 Handover Interface port 2 (HI2) ....................................................................................................................... 23
5.3 Handover Interface port 3 (HI3) ....................................................................................................................... 23
6 Specific identifiers for LI ....................................................................................................................... 23
6.0 General ............................................................................................................................................................. 23
6.1 Lawful Interception IDentifier (LIID) .............................................................................................................. 24
6.2 Communication IDentifier (CID) ..................................................................................................................... 24
6.2.0 General ........................................................................................................................................................ 24
6.2.1 Network IDentifier (NID) ........................................................................................................................... 24
6.2.2 Communication Identity Number (CIN) - optional .................................................................................... 25
7 HI1: Interface port for administrative information ................................................................................. 25
7.0 General ............................................................................................................................................................. 25
7.1 Information for the activation of lawful interception ....................................................................................... 25
7.2 LI notifications towards the LEMF .................................................................................................................. 26
8 HI2: Interface port for Intercept Related Information ............................................................................ 26
8.0 General ............................................................................................................................................................. 26
8.1 Data transmission protocols ............................................................................................................................. 26
8.1.0 Introduction................................................................................................................................................. 26
8.1.1 Application for IRI (HI2 information) ........................................................................................................ 27
8.2 Types of IRI records ......................................................................................................................................... 27
9 HI3: Interface port for Content of Communication ................................................................................ 27
10 Performance and quality ......................................................................................................................... 28
10.1 Timing .............................................................................................................................................................. 28
10.2 Quality .............................................................................................................................................................. 28
11 Security aspects ...................................................................................................................................... 28
11.0 General ............................................................................................................................................................. 28
11.1 Security properties ............................................................................................................................................ 28
11.2 Security mechanisms ........................................................................................................................................ 29
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12 Quantitative aspects ................................................................................................................................ 29
Annex A (normative): Circuit switched network handover ............................................................. 30
A.0 General ................................................................................................................................................... 30
A.1 Specific identifiers for LI ....................................................................................................................... 30
A.1.0 General ............................................................................................................................................................. 30
A.1.1 CC Link IDentifier (CCLID) ............................................................................................................................ 30
A.1.2 Circuit switched LI correlation between CC and IRI ....................................................................................... 30
A.1.3 Usage of Identifiers .......................................................................................................................................... 30
A.2 HI1: interface port for administrative state ............................................................................................ 31
A.3 HI2: interface port for IRI ...................................................................................................................... 31
A.3.1 Definition of Intercept Related Information (IRI) ............................................................................................ 31
A.3.2 Structure of IRI records .................................................................................................................................... 32
A.3.2.0 General ........................................................................................................................................................ 32
A.3.2.1 Control information for HI2........................................................................................................................ 32
A.3.2.2 Basic call information ................................................................................................................................. 32
A.3.2.3 Information on Supplementary Services, related to a call in progress ........................................................ 33
A.3.2.4 Information on non-call related Supplementary Services ........................................................................... 33
A.3.3 Selection of parameters for IRI records ............................................................................................................ 34
A.3.4 Coding of parameters in IRI records ................................................................................................................ 36
A.3.5 Information content of the IRI record types ..................................................................................................... 37
A.4 HI3: interface port for Content of Communication ................................................................................ 37
A.4.0 General ............................................................................................................................................................. 37
A.4.1 Delivery of Content of Communication (CC) .................................................................................................. 37
A.4.1.0 General ........................................................................................................................................................ 37
A.4.1.1 Delivery of TETRA CC over circuit switched handover networks ............................................................ 38
A.4.2 Delivery of packetized Content of Communication (CC) (general) ................................................................. 38
A.4.2.0 General ........................................................................................................................................................ 38
A.4.2.1 Delivery of TETRA CC over packet switched handover networks ............................................................ 39
A.4.3 Control information for circuit switched Content of Communication (CC) ..................................................... 39
A.4.4 Exception handling ........................................................................................................................................... 40
A.4.4.1 Failure of CC links ...................................................................................................................................... 40
A.4.4.2 Fault reporting ............................................................................................................................................ 40
A.4.5 Security requirements at the interface port HI3 ................................................................................................ 41
A.4.5.0 General ........................................................................................................................................................ 41
A.4.5.1 LI access verification .................................................................................................................................. 41
A.4.5.2 Access protection ........................................................................................................................................ 41
A.4.5.3 Authentication ............................................................................................................................................. 41
A.5 LI procedures for circuit switched supplementary services ................................................................... 42
A.5.1 General ............................................................................................................................................................. 42
A.5.2 CC link Impact ................................................................................................................................................. 44
A.5.3 IRI impact, general principle for sending IRI records ...................................................................................... 44
A.5.4 Multi party calls - general principles, options A, B .......................................................................................... 45
A.5.4.0 General ........................................................................................................................................................ 45
A.5.4.1 CC links for active and non-active calls (option A) .................................................................................... 45
A.5.4.2 Reuse of CC links for active calls (option B) ............................................................................................. 45
A.5.5 Subscriber Controlled Input (SCI): Activation/Deactivation/Interrogation of services ................................... 46
A.6 Detailed procedures for circuit switched supplementary services .......................................................... 46
A.6.1 Advice of Charge services (AOC) .................................................................................................................... 46
A.6.2 Call Waiting (CW) ........................................................................................................................................... 46
A.6.2.1 Call Waiting (CW) at target: CC links ........................................................................................................ 46
A.6.2.2 Call Waiting: IRI records ............................................................................................................................ 47
A.6.2.2.1 Target is served user.............................................................................................................................. 47
A.6.2.2.2 Other party is served user ...................................................................................................................... 47
A.6.3 Call Hold/Retrie ve ............................................................................................................................................ 47
A.6.3.1 CC links for active and non-active calls (option A) .................................................................................... 47
A.6.3.2 Reuse of CC links for active calls (option B) ............................................................................................. 47
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A.6.3.3 IRI records .................................................................................................................................................. 47
A.6.3.3.1 Invocation of Call Hold or Retrieve by target ....................................................................................... 47
A.6.3.3.2 Invocation of Hold or Retrieve by other parties .................................................................................... 47
A.6.4 Explicit Call Transfer (ECT) ............................................................................................................................ 47
A.6.4.1 Explicit Call Transfer (ECT), CC link ........................................................................................................ 47
A.6.4.2 Explicit Call Transfer (ECT), IRI records .................................................................................................. 48
A.6.5 Calling Line Identification Presentation (CLIP) (IRI Records) ........................................................................ 48
A.6.5.1 Call originated by target (other party is served user) .................................................................................. 48
A.6.5.2 Call terminated at target (target is served user) .......................................................................................... 48
A.6.6 Calling Line Identification Restriction (CLIR) ................................................................................................ 48
A.6.7 COnnected Line identification Presentation (COLP) ....................................................................................... 48
A.6.7.1 Call terminated at target (other party is served user) .................................................................................. 48
A.6.7.2 Call originated by target (target is served user) .......................................................................................... 48
A.6.8 COnnected Line identification Restriction (COLR) ......................................................................................... 48
A.6.9 Closed User Group (CUG) ............................................................................................................................... 49
A.6.10 Completion of Call to Busy Subscriber (CCBS) .............................................................................................. 49
A.6.11 CONFerence call, add-on (CONF) ................................................................................................................... 49
A.6.11.1 CONFerence calls, add on: CC links .......................................................................................................... 49
A.6.11.2 Conference calls: IRI records...................................................................................................................... 49
A.6.12 Three Party Service (Conference) .................................................................................................................... 49
A.6.12.1 CC links ...................................................................................................................................................... 49
A.6.12.2 Three Party Service, IRI Records ............................................................................................................... 49
A.6.13 Meet-Me Conference (MMC) .......................................................................................................................... 49
A.6.14 Direct Dialling In (DDI) ................................................................................................................................... 50
A.6.15 Multiple Subscriber Number (MSN) ................................................................................................................ 50
A.6.16 DIVersion services (DIV) ................................................................................................................................ 50
A.6.16.0 General ........................................................................................................................................................ 50
A.6.16.1 Call Diversion by target .............................................................................................................................. 50
A.6.16.1.1 Call Diversion by target, CC links ........................................................................................................ 50
A.6.16.1.2 Call Diversion by target, IRI records .................................................................................................... 51
A.6.16.2 Forwarded call terminated at target ............................................................................................................ 51
A.6.16.3 Call from target forwarded ......................................................................................................................... 51
A.6.17 Variants of call diversion services .................................................................................................................... 51
A.6.18 Void .................................................................................................................................................................. 51
A.6.19 Malicious Call IDentification (MCID) ............................................................................................................. 51
A.6.20 SUBaddressing (SUB) ...................................................................................................................................... 51
A.6.21 Terminal Portability (TP) ................................................................................................................................. 51
A.6.21.1 CC links ...................................................................................................................................................... 51
A.6.21.2 IRI records .................................................................................................................................................. 51
A.6.21.2.1 Invocation of Terminal Portability by target ......................................................................................... 51
A.6.21.2.2 Invocation of Terminal Portability by other parties .............................................................................. 52
A.6.22 User-to-User Signalling (UUS) ........................................................................................................................ 52
A.6.23 Abbreviated Address (AA) ............................................................................................................................... 52
A.6.24 Fixed Destination Call (FDC) .......................................................................................................................... 52
A.6.25 Alarm Call (AC)/Wake-Up Service (WUS) ..................................................................................................... 52
A.6.26 Incoming Call Barring (ICB)............................................................................................................................ 52
A.6.27 Outgoing Call Barring (OCB) .......................................................................................................................... 52
A.6.28 Completion of Calls on No Reply (CCNR) ...................................................................................................... 52
A.6.29 Reverse charging .............................................................................................................................................. 52
A.6.30 Line hunting ..................................................................................................................................................... 53
A.6.31 Message Wait Indication (MWI) ...................................................................................................................... 53
A.6.32 Name display .................................................................................................................................................... 53
A.6.33 Tones, announcements ..................................................................................................................................... 53
A.7 Void ........................................................................................................................................................ 53
A.8 GSM circuit switched technology annex ................................................................................................ 53
A.8.1 Functional architecture ..................................................................................................................................... 53
A.8.2 Correlation of CC and IRI (see clause 6) ......................................................................................................... 54
A.8.3 HI3 (delivery of CC) ........................................................................................................................................ 54
A.8.4 HI2 (delivery of IRI) ........................................................................................................................................ 54
A.9 TETRA technology annex ...................................................................................................................... 56
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