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

Revision of ES 201 671 to support IP-based and other new telecommunications technologies.

Telekomunikacijska varnost – Zakonito prestrezanje (LI) – Izročilni vmesnik za zakonito prestrezanje telekomunikacijskega prometa

General Information

Status
Published
Publication Date
30-Jun-2003
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jul-2003
Due Date
01-Jul-2003
Completion Date
01-Jul-2003

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SIST ES 201 671 V2.1.1:2003
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SLOVENSKI STANDARD
SIST ES 201 671 V2.1.1:2003
01-julij-2003
7HOHNRPXQLNDFLMVNDYDUQRVW±=DNRQLWRSUHVWUH]DQMH /, ±,]URþLOQLYPHVQLN]D
]DNRQLWRSUHVWUH]DQMHWHOHNRPXQLNDFLMVNHJDSURPHWD

Telecommunications security; Lawful Interception (LI); Handover interface for the lawful

interception of telecommunications traffic
Ta slovenski standard je istoveten z: ES 201 671 Version 2.1.1
ICS:
33.030 Telekomunikacijske Telecommunication services.
uporabniške rešitve Applications
SIST ES 201 671 V2.1.1:2003 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ES 201 671 V2.1.1:2003
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SIST ES 201 671 V2.1.1:2003
ETSI ES 201 671 V2.1.1 (2001-09)
ETSI Standard
Telecommunications security;
Lawful Interception (LI);
Handover interface for the lawful interception of
telecommunications traffic
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SIST ES 201 671 V2.1.1:2003
2 ETSI ES 201 671 V2.1.1 (2001-09)
Reference
RES/SEC-003009
Keywords
data, handover, interface, security, speech
ETSI
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Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2001.
All rights reserved.
ETSI
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SIST ES 201 671 V2.1.1:2003
3 ETSI ES 201 671 V2.1.1 (2001-09)
Contents

Intellectual Property Rights................................................................................................................................8

Foreword.............................................................................................................................................................8

1 Scope........................................................................................................................................................9

2 References................................................................................................................................................9

3 Definitions and abbreviations.................................................................................................................12

3.1 Definitions........................................................................................................................................................12

3.2 Abbreviations...................................................................................................................................................14

4 General requirements.............................................................................................................................16

4.1 Basic principles for the handover interface ......................................................................................................16

4.2 Legal requirements...........................................................................................................................................17

4.3 Functional requirements...................................................................................................................................17

5 Overview of handover interface.............................................................................................................17

5.1 Handover Interface port 1 (HI1).......................................................................................................................18

5.1.1 Manual interface.........................................................................................................................................19

5.1.2 Electronic interface.....................................................................................................................................19

5.2 Handover Interface port 2 (HI2).......................................................................................................................19

5.3 Handover Interface port 3 (HI3).......................................................................................................................19

6 Specific identifiers for LI .......................................................................................................................19

6.1 Lawful Interception IDentifier (LIID)..............................................................................................................19

6.2 Communication IDentifier (CID) .....................................................................................................................20

6.2.1 Network IDentifier (NID)...........................................................................................................................20

6.2.2 Communication Identity Number (CIN) - optional ....................................................................................20

7 HI1: Interface port for administrative information.................................................................................21

7.1 Information for the activation of lawful interception .......................................................................................21

7.2 LI notifications towards the LEMF ..................................................................................................................21

8 HI2: Interface port for intercept related information..............................................................................21

8.1 Data transmission protocols .............................................................................................................................22

8.1.1 Application for IRI (HI2 information) ........................................................................................................22

8.2 Types of IRI records.........................................................................................................................................22

9 HI3: Interface port for content of communication .................................................................................23

10 Performance and quality.........................................................................................................................23

10.1 Timing..............................................................................................................................................................23

10.2 Quality..............................................................................................................................................................23

11 Security aspects......................................................................................................................................23

11.1 Security properties............................................................................................................................................23

11.2 Security mechanisms........................................................................................................................................24

12 Quantitative aspects................................................................................................................................24

Annex A (normative): Circuit switched network handover.............................................................25

A.1 specific identifiers for LI........................................................................................................................25

A.1.1 CC link identifier (CCLID) ..............................................................................................................................25

A.1.2 Circuit switched LI correlation between CC and IRI .......................................................................................25

A.1.3 Usage of Identifiers ..........................................................................................................................................26

A.2 HI1: interface port for administrative state ............................................................................................26

A.3 HI2: interface port for IRI ......................................................................................................................26

A.3.1 Definition of Intercept Related Information.....................................................................................................26

A.3.2 Structure of IRI records....................................................................................................................................27

ETSI
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SIST ES 201 671 V2.1.1:2003
4 ETSI ES 201 671 V2.1.1 (2001-09)

A.3.2.1 Control information for HI2........................................................................................................................27

A.3.2.2 Basic call information.................................................................................................................................28

A.3.2.3 Information on supplementary services, related to a call in progress .........................................................28

A.3.2.4 Information on non call related supplementary services.............................................................................29

A.3.3 Selection of parameters for IRI records............................................................................................................29

A.3.4 Coding of parameters in IRI records ................................................................................................................31

A.3.5 Information content of the IRI record types .....................................................................................................32

A.4 HI3: interface port for Content of Communication................................................................................32

A.4.1 Delivery of Content of Communication ...........................................................................................................32

A.4.2 Delivery of packetized Content of Communication (general)..........................................................................33

A.4.3 Control information for Circuit switched content of communication ..............................................................34

A.4.4 Exception Handling..........................................................................................................................................35

A.4.4.1 Failure of CC links......................................................................................................................................35

A.4.4.2 Fault reporting............................................................................................................................................35

A.4.5 Security requirements at the interface port HI3................................................................................................35

A.4.5.1 LI access verification..................................................................................................................................36

A.4.5.2 Access protection........................................................................................................................................36

A.4.5.3 Authentication.............................................................................................................................................36

A.5 LI procedures for circuit switched supplementary services ...................................................................36

A.5.1 General.............................................................................................................................................................36

A.5.2 CC link Impact .................................................................................................................................................39

A.5.3 IRI Impact, General Principle for Sending IRI records....................................................................................39

A.5.4 Multi party calls - general principles, options A, B..........................................................................................39

A.5.4.1 CC links for active and non-active calls (option A)....................................................................................40

A.5.4.2 Reuse of CC links for active calls (option B) .............................................................................................40

A.5.5 Subscriber Controlled Input (SCI): Activation/Deactivation/Interrogation of Services...................................41

A.6 Detailed procedures for circuit switched supplementary services..........................................................41

A.6.1 Advice of Charge services (AOC)....................................................................................................................41

A.6.2 Call Waiting.....................................................................................................................................................41

A.6.2.1 Call Waiting at target: CC links..................................................................................................................41

A.6.2.2 Call Waiting: IRI records............................................................................................................................42

A.6.2.2.1 Target is served user..............................................................................................................................42

A.6.2.2.2 Other party is served user......................................................................................................................42

A.6.3 Call Hold/Retrieve............................................................................................................................................42

A.6.3.1 CC links for active and non-active calls (option A)....................................................................................42

A.6.3.2 Reuse of CC links for active calls (option B) .............................................................................................42

A.6.3.3 IRI records..................................................................................................................................................42

A.6.3.3.1 Invocation of Call Hold or Retrieve by target.......................................................................................42

A.6.3.3.2 Invocation of Hold or Retrieve by other parties....................................................................................42

A.6.4 Explicit Call Transfer .......................................................................................................................................42

A.6.4.1 Explicit Call Transfer, CC link ...................................................................................................................42

A.6.4.2 Explicit Call Transfer, IRI records..............................................................................................................43

A.6.5 Calling Line Identification Presentation (IRI Records)....................................................................................43

A.6.5.1 Call originated by target (target is served user) ..........................................................................................43

A.6.5.2 Call terminated at target (other party is served user) ..................................................................................43

A.6.6 Calling Line Identification Restriction (CLIR) ................................................................................................43

A.6.7 COnnected Line Identification Presentation (COLP).......................................................................................43

A.6.7.1 Call terminated at target (target is served user) ..........................................................................................43

A.6.7.2 Call originated by target (other party is served user)..................................................................................43

A.6.8 COnnected Line Identification Restriction (COLR).........................................................................................43

A.6.9 Closed User Group (CUG) ...............................................................................................................................44

A.6.10 Completion of Call to Busy Subscriber (CCBS) ..............................................................................................44

A.6.11 CONFerence call, add-On (CONF)..................................................................................................................44

A.6.11.1 CONFerence calls, add On: CC links .........................................................................................................44

A.6.11.2 Conference calls: IRI records......................................................................................................................44

A.6.12 Three Party Service (Conference) ....................................................................................................................44

A.6.12.1 CC links......................................................................................................................................................44

A.6.12.2 Three Party Service, IRI Records ...............................................................................................................44

A.6.13 Meet-Me Conference (MMC)..........................................................................................................................44

A.6.14 Direct Dialling In (DDI)...................................................................................................................................45

ETSI
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SIST ES 201 671 V2.1.1:2003
5 ETSI ES 201 671 V2.1.1 (2001-09)

A.6.15 Multiple Subscriber Number (MSN)................................................................................................................45

A.6.16 Diversion Services (DIV).................................................................................................................................45

A.6.16.1 Call Diversion by Target.............................................................................................................................45

A.6.16.1.1 Call Diversion by Target, CC links.......................................................................................................45

A.6.16.1.2 Call Diversion by Target, IRI records...................................................................................................45

A.6.16.2 Forwarded Call Terminated at Target.........................................................................................................46

A.6.16.3 Call from Target Forwarded .......................................................................................................................46

A.6.17 Variants of call diversion services....................................................................................................................46

A.6.18 Void..................................................................................................................................................................46

A.6.19 Malicious Call IDentification (MCID).............................................................................................................46

A.6.20 SUBaddressing (SUB)......................................................................................................................................46

A.6.21 Terminal Portability (TP) .................................................................................................................................46

A.6.21.1 CC links......................................................................................................................................................46

A.6.21.2 IRI records..................................................................................................................................................46

A.6.21.2.1 Invocation of Terminal Portability by target.........................................................................................46

A.6.21.2.2 Invocation of Terminal Portability by other parties ..............................................................................46

A.6.22 User-to-User Signalling (UUS) ........................................................................................................................46

A.6.23 Abbreviated Address (AA)...............................................................................................................................47

A.6.24 Fixed Destination Call (FDC) ..........................................................................................................................47

A.6.25 Alarm Call (AC)/Wake Up Service (WUS) .....................................................................................................47

A.6.26 Incoming Call Barring (ICB)............................................................................................................................47

A.6.27 Outgoing Call Barring (OCB) ..........................................................................................................................47

A.6.28 Completion of Calls on No Reply (CCNR)......................................................................................................47

A.6.29 Reverse Charging.............................................................................................................................................47

A.6.30 Line Hunting....................................................................................................................................................47

A.6.31 Message Wait Indication (MWI)......................................................................................................................47

A.6.32 Name display....................................................................................................................................................47

A.6.33 Tones, Announcements....................................................................................................................................48

A.7 Fixed network technologies annex.........................................................................................................48

A.8 GSM circuit switched technology annex................................................................................................48

A.8.1 Functional architecture.....................................................................................................................................48

A.8.2 Correlation of CC and IRI (see clause 6) .........................................................................................................49

A.8.3 HI3 (Delivery of CC) .......................................................................................................................................49

A.8.4 HI2 (Delivery of IRI) .......................................................................................................................................49

A.9 TETRA technology annex......................................................................................................................50

Annex B (normative): Packet switched network handover..............................................................51

B.1 Specific identifiers for LI .......................................................................................................................51

B.2 HI1: interface port for administrative state ............................................................................................51

B.3 HI2: interface port for IRI ......................................................................................................................51

B.3.1 Definition of Interception Related Information for Packet Switched...............................................................51

B.3.2 Exception Handling..........................................................................................................................................51

B.3.3 Security aspect..................................................................................................................................................51

B.4 HI3: interface port for content of communication..................................................................................51

B.5 GPRS technology annex.........................................................................................................................52

B.5.1 Functional architecture.....................................................................................................................................52

B.5.2 Correlation........................................................................................................................................................53

B.5.2.1 Correlation of the present document ID's to GSM ID's ..............................................................................53

B.5.2.2 GPRS LI correlation between CC and IRI..................................................................................................53

B.5.3 HI2 (Delivery of IRI) .......................................................................................................................................53

B.5.4 HI3 (Delivery of CC) .......................................................................................................................................54

Annex C (normative): HI2 Delivery mechanisms and procedures..................................................55

C.1 ROSE......................................................................................................................................................55

C.1.1 Architecture......................................................................................................................................................55

C.1.2 ASE_HI procedures..........................................................................................................................................56

ETSI
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SIST ES 201 671 V2.1.1:2003
6 ETSI ES 201 671 V2.1.1 (2001-09)

C.1.2.1 Sending part................................................................................................................................................56

C.1.2.2 Receiving part.............................................................................................................................................57

C.1.2.3 Data link management................................................................................................................................57

C.1.2.3.1 Data link establishment .........................................................................................................................58

C.1.2.3.2 Data link release....................................................................................................................................58

C.1.2.4 Handling of Unrecognized Fields and Parameters......................................................................................59

C.1.3 Profiles.............................................................................................................................................................59

C.2 FTP.........................................................................................................................................................59

C.2.1 Introduction......................................................................................................................................................59

C.2.2 Usage of the FTP..............................................................................................................................................59

C.2.3 Profiles (this clause is informative only)..........................................................................................................60

C.2.4 File content.......................................................................................................................................................6

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