ETSI TS 101 671 V3.15.1 (2018-06)

Lawful Interception (LI); Handover interface for the lawful interception of telecommunications traffic

RTS/LI-00153

General Information

• Status: Published
• Publication Date: 05-Jun-2018
• Technical Committee: LI - Lawful Interception
• Current Stage: 13 - TB decision to make document historical
• Due Date: 06-Jun-2018
• Completion Date: 06-Jun-2018

Standards Content (Sample)

ETSI TS 101 671 V3.15.1 (2018-06)






TECHNICAL SPECIFICATION
Lawful Interception (LI);
Handover interface for the lawful interception of
telecommunications traffic

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2 ETSI TS 101 671 V3.15.1 (2018-06)



Reference
RTS/LI-00153
Keywords
data, handover, interface, Lawful Interception,
security, speech
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3 ETSI TS 101 671 V3.15.1 (2018-06)
Contents
Intellectual Property Rights . 9
Foreword . 9
Modal verbs terminology . 9
Introduction . 9
1 Scope . 10
2 References . 11
2.1 Normative references . 11
2.2 Informative references . 15
3 Definitions and abbreviations . 15
3.1 Definitions . 15
3.2 Abbreviations . 18
4 General requirements . 21
4.0 General . 21
4.1 Basic principles for the Handover Interface . 21
4.2 Legal requirements . 22
4.3 Functional requirements . 22
5 Overview of Handover Interface . 22
5.0 General . 22
5.1 Handover Interface port 1 (HI1) . 23
5.1.0 General . 23
5.1.1 Manual interface . 24
5.1.2 Electronic interface . 24
5.2 Handover Interface port 2 (HI2) . 24
5.3 Handover Interface port 3 (HI3) . 24
6 Specific identifiers for LI . 24
6.0 General . 24
6.1 Lawful Interception IDentifier (LIID) . 25
6.2 Communication IDentifier (CID) . 25
6.2.0 General . 25
6.2.1 Network IDentifier (NID) . 25
6.2.2 Communication Identity Number (CIN) - optional . 26
7 HI1: Interface port for administrative information . 26
7.0 General . 26
7.1 Information for the activation of lawful interception . 26
7.2 LI notifications towards the LEMF . 27
8 HI2: Interface port for Intercept Related Information . 27
8.0 General . 27
8.1 Data transmission protocols . 27
8.1.0 General . 27
8.1.1 Application for IRI (HI2 information) . 28
8.2 Types of IRI records . 28
9 HI3: Interface port for Content of Communication . 28
10 Performance and quality . 29
10.1 Timing . 29
10.2 Quality . 29
11 Security aspects . 29
11.0 General . 29
11.1 Security properties . 29
11.2 Security mechanisms . 30
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4 ETSI TS 101 671 V3.15.1 (2018-06)
12 Quantitative aspects . 30
Annex A (normative): Circuit switched network handover . 31
A.0 General . 31
A.1 Specific identifiers for LI . 31
A.1.0 General . 31
A.1.1 CC Link IDentifier (CCLID) . 31
A.1.2 Circuit switched LI correlation between CC and IRI . 31
A.1.3 Usage of identifiers . 31
A.2 HI1: interface port for administrative state . 32
A.3 HI2: interface port for IRI . 32
A.3.1 Definition of Intercept Related Information (IRI) . 32
A.3.2 Structure of IRI records . 33
A.3.2.0 General . 33
A.3.2.1 Control information for HI2. 33
A.3.2.2 Basic call information . 34
A.3.2.3 Information on Supplementary Services, related to a call in progress . 34
A.3.2.4 Information on non-call related Supplementary Services . 35
A.3.3 Selection of parameters for IRI records . 35
A.3.4 Coding of parameters in IRI records . 38
A.3.5 Information content of the IRI record types . 38
A.4 HI3: interface port for Content of Communication . 38
A.4.0 General . 38
A.4.1 Delivery of Content of Communication (CC) . 38
A.4.1.0 General . 38
A.4.1.1 Delivery of TETRA CC over circuit switched handover networks . 39
A.4.2 Delivery of packetized Content of Communication (CC) (general) . 39
A.4.2.0 General . 39
A.4.2.1 Delivery of TETRA CC over packet switched handover networks . 40
A.4.3 Control information for circuit switched Content of Communication (CC) . 40
A.4.4 Exception handling . 41
A.4.4.1 Failure of CC links . 41
A.4.4.2 Fault reporting . 41
A.4.5 Security requirements at the interface port HI3 . 42
A.4.5.0 General . 42
A.4.5.1 LI access verification . 42
A.4.5.2 Access protection . 42
A.4.5.3 Authentication . 42
A.5 LI procedures for circuit switched supplementary services . 43
A.5.1 General . 43
A.5.2 CC link Impact . 45
A.5.3 IRI impact, general principle for sending IRI records . 45
A.5.4 Multi party calls - general principles, options A, B . 46
A.5.4.0 General . 46
A.5.4.1 CC links for active and non-active calls (option A) . 46
A.5.4.2 Reuse of CC links for active calls (option B) . 46
A.5.5 Subscriber Controlled Input (SCI): Activation/Deactivation/Interrogation of services . 47
A.6 Detailed procedures for circuit switched supplementary services . 47
A.6.1 Advice of Charge services (AOC) . 47
A.6.2 Call Waiting (CW) . 47
A.6.2.1 Call Waiting (CW) at target: CC links . 47
A.6.2.2 Call Waiting: IRI records . 48
A.6.2.2.1 Target is served user. 48
A.6.2.2.2 Other party is served user . 48
A.6.3 Call Hold/Retrie ve . 48
A.6.3.1 CC links for active and non-active calls (option A) . 48
A.6.3.2 Reuse of CC links for active calls (option B) . 48
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5 ETSI TS 101 671 V3.15.1 (2018-06)
A.6.3.3 IRI records . 48
A.6.3.3.1 Invocation of Call Hold or Retrieve by target . 48
A.6.3.3.2 Invocation of Hold or Retrieve by other parties . 48
A.6.4 Explicit Call Transfer (ECT) . 48
A.6.4.1 Explicit Call Transfer (ECT), CC link . 48
A.6.4.2 Explicit Call Transfer (ECT), IRI records . 49
A.6.5 Calling Line Identification Presentation (CLIP) (IRI Records) . 49
A.6.5.1 Call originated by target (other party is served user) . 49
A.6.5.2 Call terminated at target (target is served user) . 49
A.6.6 Calling Line Identification Restriction (CLIR) . 49
A.6.7 COnnected Line identification Presentation (COLP) . 49
A.6.7.1 Call terminated at target (other party is served user) . 49
A.6.7.2 Call originated by target (target is served user) . 49
A.6.8 COnnected Line identification Restriction (COLR) . 49
A.6.9 Closed User Group (CUG) . 50
A.6.10 Completion of Call to Busy Subscriber (CCBS) . 50
A.6.11 CONFerence call, add-on (CONF) . 50
A.6.11.1 CONFerence calls, add on: CC links . 50
A.6.11.2 Conference calls: IRI records. 50
A.6.12 Three party service (3PTY) (conference) . 50
A.6.12.1 CC links . 50
A.6.12.2 Three party service, IRI records . 50
A.6.13 Meet-Me Conference (MMC) . 50
A.6.14 Direct Dialling In (DDI) . 51
A.6.15 Multiple Subscriber Number (MSN) . 51
A.6.16 DIVersion services (DIV) . 51
A.6.16.0 General . 51
A.6.16.1 Call Diversion by target . 51
A.6.16.1.1 Call Diversion by target, CC links . 51
A.6.16.1.2 Call Diversion by target, IRI records . 52
A.6.16.2 Forwarded call terminated at target . 52
A.6.16.3 Call from target forwarded . 52
A.6.17 Variants of call diversion services . 52
A.6.18 Void . 52
A.6.19 Malicious Call IDentification (MCID) . 52
A.6.20 SUBaddressing (SUB) . 52
A.6.21 Terminal Portability (TP) . 52
A.6.21.1 CC links . 52
A.6.21.2 IRI records . 52
A.6.21.2.1 Invocation of Terminal Portability by target . 52
A.6.21.2.2 Invocation of Terminal Portability by other parties . 53
A.6.22 User-to-User Signalling (UUS) . 53
A.6.23 Abbreviated Address (AA) . 53
A.6.24 Fixed Destination Call (FDC) . 53
A.6.25 Alarm Call (AC)/Wake-Up Service (WUS) . 53
A.6.26 Incoming Call Barring (ICB). 53
A.6.27 Outgoing Call Barring (OCB) . 53
A.6.28 Completion of Calls on No Reply (CCNR) . 53
A.6.29 Reverse charging . 53
A.6.30 Line hunting . 54
A.6.31 Message Wait Indication (MWI) . 54
A.6.32 Name display . 54
A.6.33 Tones, announcements . 54
A.7 Void . 54
A.8 GSM circuit switched technology annex . 54
A.8.1 Functional architecture . 54
A.8.2 Correlation of CC and IRI (see clause 6) . 55
A.8.3 HI3 (delivery of CC) . 55
A.8.4 HI2 (delivery of IRI) . 56
A.9 TETRA technology annex . 58
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6 ETSI TS 101 671 V3.15.1 (2018-06)
A.9.0 General . 58
A.9.1 According ETSI EN 301 040 . 58
A.9.2 Based on ETSI EN 301 040 adapted to common handover interface . 58
A.9.2.0 HI 2 event definitions . 58
A.9.2.1 IRI event definitions . 58
A.9.2.1.0 General .
...