SIST-TS ETSI/TS 101 671 V1.1.1:2005
(Main)Telecommunications security; Lawful interception (LI); Handover interface for the lawful interception of telecommunications traffic
- Abstract
Revision of ES 201 671 to support IP-based and other new telecommunications technologies.
- Status
- Published
- Publication Date
- 30-Apr-2005
- Technical Committee
- SPN - Services and Protocols for Networks
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-May-2005
- Due Date
- 01-May-2005
- Completion Date
- 01-May-2005
SIST-TS ETSI/TS 101 671 V1.1.1:2005 is the Slovenian standard that reproduces ETSI TS 101 671 V1.1.1, a technical specification on lawful interception handover for telecommunications traffic. It specifies how a network operator, access provider or service provider delivers administrative information, intercept related information and content of communication to a Law Enforcement Agency. The document is written for implementation of lawful interception in circuit switched and packet data networks, and its revision scope says it supports IP-based and other new telecommunications technologies.
What does SIST-TS ETSI/TS 101 671 V1.1.1:2005 specify?
SIST-TS ETSI/TS 101 671 V1.1.1:2005 specifies a generic handover interface for lawful interception between the NWO/AP/SvP side and the LEA side. It defines the information flow, the procedures and the information elements used on the three logical ports HI1, HI2 and HI3.
The document is structured as a core specification with two normative annexes for circuit switched and packet switched handover, a normative annex for HI2 delivery mechanisms, a normative annex for data coding, and informative annexes for correlation guidance and GPRS HI3 handling.
| Annex | What it covers |
|---|---|
| Annex A | Circuit switched network handover, including identifiers, IRI, CC delivery, supplementary service procedures, and technology notes for fixed networks, GSM and TETRA |
| Annex B | Packet switched network handover, including identifiers, IRI, CC delivery, and GPRS technology notes |
| Annex C | HI2 delivery mechanisms and procedures, using ROSE or FTP |
| Annex D | Structure and coding of data at HI1, HI2 and HI3 |
| Annex E | Use of sub-address and calling party number to carry correlation information |
| Annex F | GPRS HI3 interface, including functional architecture, correlation and CC delivery |
What are the key requirements of SIST-TS ETSI/TS 101 671 V1.1.1:2005?
SIST-TS ETSI/TS 101 671 V1.1.1:2005 separates lawful interception into administrative handling, intercept related information and content of communication. That separation matters in practice because different staff, systems and transmission paths can be used for ordering, correlating and delivering intercepted traffic.
Administrative handling and control
Clause 4 states that lawful interception must be selectable to fit national requirements, national law and the law applicable to a specific LEA. In practice, an implementation has to support local legal variants without changing the overall handover model.
Clause 4.3 requires the lawful authorization to identify the type of information requested, the interception subject, start and stop time, and the addresses for CC and/or IRI delivery. It also requires strict separation when one interception subject is targeted by more than one LEA, so operators must keep each measure isolated.
Clause 5 defines HI1 as the interface for administrative information and says it may be manual or electronic. HI1 carries activation, deactivation and modification requests and related notifications, but the LEA must not have direct control over the switching function.
Clause 7 lists the information needed to activate lawful interception, including target identity, LIID, timing, the type of interception, delivery addresses, network-dependent parameters, authorization reference and a technical contact. This tells implementers what the operator needs before interception can start.
Clause 7.2 requires notifications to the LEMF after activation, deactivation, modification and certain exceptional situations. In practice, the LEA needs operational feedback, not just initial setup data.
Identifiers and correlation
Clause 6 introduces the Lawful Interception Identifier (LIID), which is assigned for each target identity and used across HI1, HI2 and HI3. This gives each interception measure a common reference and helps keep the target identity known only to the authorized operator and the LEA handlers.
Clause 6.2 introduces the Communication IDentifier (CID), made up of the Network IDentifier (NID) and the optional Communication Identity Number (CIN). The CID separates different activities for the same target and supports correlation between IRI records and CC connections.
Annex A and Annex B add technology-specific identifiers for circuit switched and packet switched networks. That matters because correlation often depends on the network type and the underlying signaling information.
HI2 - intercept related information
Clause 8 says HI2 transports IRI, including signaling information used to set up and control the communication, time stamps and, where available, supplementary service or location information. Only information that is part of standard network signaling procedures is to be used, which keeps the interception path tied to what the network already knows.
Clause 8.1 says the delivery methods are based on standardized data transmission protocols such as ROSE or FTP, and Annex C provides those procedures. Annex C also states that at least one of the two methods shall be provided according to national requirements.
Clause 8.2 defines four IRI record types - IRI-BEGIN, IRI-END, IRI-CONTINUE and IRI-REPORT. In practice, this means the LEA receives a transaction view of each communication attempt plus separate reports for non-communication events.
Annex D gives the ASN.1 structures for HI2, including the communicationIdentifier, timeStamp, intercepted-Call-Direct, durations, location data, supplementary services, SMS-report and GPRS-related fields. For implementers, Annex D is the coding map that makes the records interoperable.
HI3 - content of communication
Clause 9 defines HI3 as the port that transports the content of communication to the LEMF as a transparent en-clair copy of the information flow. This is the actual intercepted traffic, not a summary, and the document says HI3 depends on the technology being intercepted.
Annex A describes circuit switched HI3 delivery, including stereo transmission where two channels are needed for the two directions of a call. Annex B and Annex F cover packet switched and GPRS HI3 handling, including correlation support and file-based delivery options.
Timing, quality and security
Clause 10 says IRI should be buffered for as short a time as possible if buffering is needed, and the quality of service for the interception result should be at least equal to the quality of the original content of communication. That is important for evidence handling and for usable monitoring data.
Clause 11 describes the security properties expected for transport channels: confidentiality, integrity, authentication and availability. It also points to encryption, hashing and cryptographic authentication as possible mechanisms, which helps implementers choose appropriate transport protection.
Clause 12 refers quantitative aspects back to [2] and says the number of targets based on a percentage of subscribers should be provided at national level with an indication of expected usage. That is useful for planning capacity and operational scale.
What terms does SIST-TS ETSI/TS 101 671 V1.1.1:2005 define?
Lawful Interception Identifier (LIID) - a special identifier assigned for each target identity so the interception measure can be referenced without exposing the target identity more widely.
Communication IDentifier (CID) - the identifier used to distinguish one activity of a target from another and to correlate IRI with CC.
Intercept Related Information (IRI) - information associated with the target's telecommunications service, such as signaling, service events and location data.
Content of Communication (CC) - the intercepted communication content itself, delivered as an en-clair copy of the communication flow.
Handover Interface (HI) - the logical handover structure between the operator side and the LEA side, split into HI1, HI2 and HI3.
Handover Interface Port 1 (HI1) - the administrative interface for interception requests, notifications and management information.
Handover Interface Port 2 (HI2) - the interface that carries IRI from the operator side to the LEA side.
Handover Interface Port 3 (HI3) - the interface that carries CC from the operator side to the LEA side.
Who uses SIST-TS ETSI/TS 101 671 V1.1.1:2005?
SIST-TS ETSI/TS 101 671 V1.1.1:2005 is used by NWO/AP/SvP organizations that must deliver lawful interception to LEAs. In practice that means network engineers, mediation-function designers, lawful interception administrators, and compliance or security teams in telecom operators and service providers.
LEAs use it to specify what they need, how interception measures are ordered, and how IRI and CC are delivered. Buyers and quality managers use it to check whether a telecom platform can support lawful interception handover in their network type, including circuit switched and packet data environments.
What changed in SIST-TS ETSI/TS 101 671 V1.1.1:2005 from the previous edition?
This document revises ES 201 671 to support IP-based and other new telecommunications technologies. Clause 6.2 also notes that the former Call Identifier was renamed Communication IDentifier because of new technologies.
Which standards are used with SIST-TS ETSI/TS 101 671 V1.1.1:2005?
The document relies on ETSI ETR 331 for LEA requirements, ES 201 158 for the network-function model, and ETR 330 for the legislative and regulatory context. Those references provide the requirements basis that the handover interface builds on.
It also uses ETSI EN 300 356, EN 300 403-1, EN 300 061-1, EN 300 097-1, EN 300 138-1, EN 300 185-1, EN 300 188-1 and EN 300 122-1 for ISDN signaling and supplementary-service coding. These are important because Annex A reuses signaling elements and parameter formats from standard telephony procedures.
The ASN.1 and encoding framework comes from ITU-T Recommendations X.680 and X.690, while remote-operation handling uses X.880, X.881 and X.882. In practice, these references define how the HI data is encoded and exchanged.
For packet and mobile contexts, the document refers to ETS 300 974, GSM and MAP-related references, and to FTP and ROSE-based procedures through Annex C. These are the technical building blocks for the packet and file-transfer options.
What does the SIST-TS ETSI/TS 101 671 V1.1.1:2005 document contain?
The document contains the three-port handover model, the operator-to-LEA administrative workflow, and the rules for LIID and CID correlation. It also contains the IRI record types, the HI2 delivery options based on ROSE and FTP, and the transport and timing behavior expected for lawful interception data.
Annex D provides ASN.1 definitions for the data structures, including HI1 notifications, HI2 IRI content, HI3 user data packet transfer, SMS-report and the UUS1 content associated to the CC link. Annex A adds detailed procedures for circuit switched supplementary services, while Annex B and Annex F extend the model to packet switched and GPRS delivery.
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Frequently Asked Questions
SIST-TS ETSI/TS 101 671 V1.1.1:2005 is a technical specification published by the Slovenian Institute for Standardization (SIST). Its full title is "Telecommunications security; Lawful interception (LI); Handover interface for the lawful interception of telecommunications traffic". This standard covers: Revision of ES 201 671 to support IP-based and other new telecommunications technologies.
Revision of ES 201 671 to support IP-based and other new telecommunications technologies.
SIST-TS ETSI/TS 101 671 V1.1.1:2005 is classified under the following ICS (International Classification for Standards) categories: 33.020 - Telecommunications in general. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST-TS ETSI/TS 101 671 V1.1.1:2005 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2005
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]DNRQLWRSUHVWUH]DQMHWHOHNRPXQLNDFLMVNHJDSURPHWD
Telecommunications security; Lawful interception (LI); Handover interface for the lawful
interception of telecommunications traffic
Ta slovenski standard je istoveten z: TS 101 671 Version 1.1.1
ICS:
33.020 Telekomunikacije na splošno Telecommunications in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
Technical Specification
Telecommunications security;
Lawful Interception (LI);
Handover interface for the lawful interception
of telecommunications traffic
2 ETSI TS 101 671 V1.1.1 (2001-07)
Reference
DTS/SEC-003009
Keywords
data, handover, interface, security, speech
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© European Telecommunications Standards Institute 2001.
All rights reserved.
ETSI
3 ETSI TS 101 671 V1.1.1 (2001-07)
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) . 20
6.2 Communication IDentifier (CID). 20
6.2.1 Network IDentifier (NID). 20
6.2.2 Communication Identity Number (CIN) - optional. 21
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 .22
8.1 Data transmission protocols . 22
8.1.1 Application for IRI (HI2 information) . 22
8.2 Types of IRI records. 23
9 HI3: Interface port for content of communication.23
10 Performance and quality .23
10.1 Timing. 23
10.2 Quality. 24
11 Security aspects .24
11.1 Security properties. 24
11.2 Security mechanisms. 24
12 Quantitative aspects .25
Annex A (normative): Circuit switched network handover .26
A.1 specific identifiers for LI.26
A.1.1 CC link identifier (CCLID). 26
A.1.2 Circuit switched LI correlation between CC and IRI . 26
A.1.3 Usage of Identifiers . 27
A.2 HI1: interface port for administrative state .27
A.3 HI2: interface port for IRI.27
A.3.1 Definition of Intercept Related Information. 27
A.3.2 Structure of IRI records . 28
ETSI
4 ETSI TS 101 671 V1.1.1 (2001-07)
A.3.2.1 Control information for HI2 . 28
A.3.2.2 Basic call information . 29
A.3.2.3 Information on supplementary services, related to a call in progress. 29
A.3.2.4 Information on non call related supplementary services . 30
A.3.3 Selection of parameters for IRI records. 30
A.3.4 Coding of parameters in IRI records . 32
A.3.5 Information content of the IRI record types. 33
A.4 HI3: interface port for Content of Communication .33
A.4.1 Delivery of Content of Communication. 33
A.4.2 Delivery of packetized Content of Communication (general). 34
A.4.3 Control information for Circuit switched content of communication. 35
A.4.4 Exception Handling. 36
A.4.4.1 Failure of CC links. 36
A.4.4.2 Fault reporting . 36
A.4.5 Security requirements at the interface port HI3. 36
A.4.5.1 LI access verification . 37
A.4.5.2 Access protection. 37
A.4.5.3 Authentication . 37
A.5 LI procedures for circuit switched supplementary services .37
A.5.1 General . 37
A.5.2 CC link Impact. 40
A.5.3 IRI Impact, General Principle for Sending IRI records . 40
A.5.4 Multi party calls - general principles, options A, B. 40
A.5.4.1 CC links for active and non-active calls (option A). 41
A.5.4.2 Reuse of CC links for active calls (option B) . 41
A.5.5 Subscriber Controlled Input (SCI): Activation/Deactivation/Interrogation of Services. 42
A.6 Detailed procedures for circuit switched supplementary services.42
A.6.1 Advice of Charge services (AOC). 42
A.6.2 Call Waiting. 43
A.6.2.1 Call Waiting at target: CC links. 43
A.6.2.2 Call Waiting: IRI records . 43
A.6.2.2.1 Target is served user . 43
A.6.2.2.2 Other party is served user. 43
A.6.3 Call Hold/Retrieve. 43
A.6.3.1 CC links for active and non-active calls (option A). 43
A.6.3.2 Reuse of CC links for active calls (option B) . 43
A.6.3.3 IRI records. 43
A.6.3.3.1 Invocation of Call Hold or Retrieve by target . 43
A.6.3.3.2 Invocation of Hold or Retrieve by other parties .43
A.6.4 Explicit Call Transfer . 44
A.6.4.1 Explicit Call Transfer, CC link. 44
A.6.4.2 Explicit Call Transfer, IRI records. 44
A.6.5 Calling Line Identification Presentation (IRI Records) . 44
A.6.5.1 Call originated by target (target is served user) . 44
A.6.5.2 Call terminated at target (other party is served user). 44
A.6.6 Calling Line Identification Restriction (CLIR) . 44
A.6.7 COnnected Line Identification Presentation (COLP) . 44
A.6.7.1 Call terminated at target (target is served user). 44
A.6.7.2 Call originated by target (other party is served user) . 45
A.6.8 COnnected Line Identification Restriction (COLR). 45
A.6.9 Closed User Group (CUG). 45
A.6.10 Completion of Call to Busy Subscriber (CCBS) . 45
A.6.11 CONFerence call, add-On (CONF). 45
A.6.11.1 CONFerence calls, add On: CC links. 45
A.6.11.2 Conference calls: IRI records . 45
A.6.12 Three Party Service (Conference) . 45
A.6.12.1 CC links. 45
A.6.12.2 Three Party Service, IRI Records. 46
A.6.13 Meet-Me Conference (MMC). 46
A.6.14 Direct Dialling In (DDI) . 46
ETSI
5 ETSI TS 101 671 V1.1.1 (2001-07)
A.6.15 Multiple Subscriber Number (MSN). 46
A.6.16 Diversion Services (DIV) . 46
A.6.16.1 Call Diversion by Target . 46
A.6.16.1.1 Call Diversion by Target, CC links. 46
A.6.16.1.2 Call Diversion by Target, IRI records. 47
A.6.16.2 Forwarded Call Terminated at Target . 47
A.6.16.3 Call from Target Forwarded. 47
A.6.17 Variants of call diversion services. 47
A.6.18 Void. 47
A.6.19 Malicious Call IDentification (MCID) . 47
A.6.20 SUBaddressing (SUB). 47
A.6.21 Terminal Portability (TP). 47
A.6.21.1 CC links. 47
A.6.21.2 IRI records. 47
A.6.21.2.1 Invocation of Terminal Portability by target . 47
A.6.21.2.2 Invocation of Terminal Portability by other parties. 47
A.6.22 User-to-User Signalling (UUS). 48
A.6.23 Abbreviated Address (AA) . 48
A.6.24 Fixed Destination Call (FDC) . 48
A.6.25 Alarm Call (AC)/Wake Up Service (WUS). 48
A.6.26 Incoming Call Barring (ICB) . 48
A.6.27 Outgoing Call Barring (OCB). 48
A.6.28 Completion of Calls on No Reply (CCNR) . 48
A.6.29 Reverse Charging. 48
A.6.30 Line Hunting. 48
A.6.31 Message Wait Indication (MWI). 49
A.6.32 Name display . 49
A.6.33 Tones, Announcements. 49
A.7 Fixed network technologies annex .49
A.8 GSM circuit switched technology annex .49
A.8.1 Functional architecture . 49
A.8.2 Correlation of CC and IRI (see clause 6). 50
A.8.3 HI3 (Delivery of CC). 51
A.8.4 HI2 (Delivery of IRI). 51
A.9 TETRA technology annex.52
Annex B (normative): Packet switched network handover.53
B.1 Specific identifiers for LI.53
B.2 HI1: interface port for administrative state .53
B.3 HI2: interface port for IRI.53
B.3.1 Definition of Interception Related Information for Packet Switched . 53
B.3.2 Exception Handling. 53
B.3.3 Security aspect . 53
B.4 HI3: interface port for content of communication.53
B.5 GPRS technology annex .54
B.5.1 Functional architecture . 54
B.5.2 Correlation. 55
B.5.2.1 Correlation of the present document ID's to GSM ID's. 55
B.5.2.2 GPRS LI correlation between CC and IRI. 55
B.5.3 HI2 (Delivery of IRI). 55
B.5.4 HI3 (Delivery of CC). 56
Annex C (normative): HI2 Delivery mechanisms and procedures.57
C.1 ROSE.57
C.1.1 Architecture . 57
C.1.2 ASE_HI procedures. 58
ETSI
6 ETSI TS 101 671 V1.1.1 (2001-07)
C.1.2.1 Sending part. 58
C.1.2.2 Receiving part. 59
C.1.2.3 Data link management. 59
C.1.2.3.1 Data link establishment. 60
C.1.2.3.2 Data link release. 60
C.1.2.4 Handling of Unrecognized Fields and Parameters . 61
C.1.3 Profiles . 61
C.2 FTP .61
C.2.1 Introduction. 61
C.2.2 Usage of the FTP. 61
C.2.3 Profiles (this clause is informative only) . 62
C.2.4 File content . 64
C.2.5 Exceptional procedures. 64
C.2.6 Other Considerations. 64
Annex D (normative): Structure of data at the handover interface.66
D.1 Syntax definitions .66
D.2 Object tree.67
D.3 HI management operation.68
D.4 LI management notification .69
D.5 Intercept related information (HI2).71
D.6 User data packet transfer (HI3 interface) .84
D.7 TETRA data transfer (HI3 interface).86
D.8 Definition of the UUS1 content associated to the CC link.87
Annex E (informative): Use of sub-address and calling party number to carry correlation
information .88
E.1 Introduction.88
E.2 Subaddress options .88
E.3 Subaddress coding .88
E.3.1 BCD Values. 89
E.3.2 Field order and layout. 89
E.4 Field coding.91
E.4.1 Direction. 92
E.4.2 Coding of the Calling Party Number . 92
E.5 Length of fields .92
Annex F (informative): GPRS HI3 Interface.93
F.1 Functional architecture.93
F.2 Correlation .93
F.3 HI3 Delivery Content of Communication(CC) .94
F.3.1 GPRS LI Correlation Header . 94
F.3.1.1 Introduction . 94
F.3.1.2 Definition of GLIC Header. 94
F.3.1.3 Exceptional procedure. 95
F.3.1.4 Other considerations . 95
F.3.2 FTP. 96
F.3.2.1 Introduction . 96
F.3.2.2 Usage of the FTP . 96
F.3.2.3 Exceptional procedures . 97
F.3.2.4 CC contents for FTP . 98
ETSI
7 ETSI TS 101 671 V1.1.1 (2001-07)
F.3.2.4.1 Fields . 98
F.3.2.4.2 Information element syntax. 99
F.3.2.5 Other Considerations.100
Annex G (informative): LEMF requirements - handling of unrecognized fields and
parameters .102
Annex H (informative): Bibliography.103
History .104
ETSI
8 ETSI TS 101 671 V1.1.1 (2001-07)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://www.etsi.org/ipr).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Security (SEC).
ETSI
9 ETSI TS 101 671 V1.1.1 (2001-07)
1 Scope
The present document is step 3 of a three step approach to describe a generic handover interface 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 (see [1]).
Step 2 describes the derived network functions and the general architecture (or functional model) and is published in
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,
for the following networks/services:
- switched circuit; and
- packet data.
The technologies covered in the present document are: GSM, TETRA, GPRS, ISDN and PSTN.
NOTE 1: Handover for TETRA is not fully developed.
NOTE 2: As new networks and/or services are developed, the present document will be expanded as the relevant
standards become available.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
[1] ETSI ETR 331: "Security Techniques Advisory Group (STAG); Definition of user requirements
for lawful interception of telecommunications; Requirements of the law enforcement agencies".
[2] ETSI ES 201 158: "Telecommunications security; Lawful Interception (LI); Requirements for
network functions".
[3] ETSI ETR 330: "Security Techniques Advisory Group (STAG); A guide to legislative and
regulatory environment".
[4] Void.
[5] ETSI EN 300 356 (all parts): "Integrated Services Digital Network (ISDN); Signalling System
No.7; ISDN User Part (ISUP) version 3 for the international interface".
[6] ETSI EN 300 403-1 (V1.2.2): "Integrated Services Digital Network (ISDN); Digital Subscriber
Signalling System No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call
control; Part 1: Protocol specification [ITU-T Recommendation Q.931 (1993), modified]".
[7] Void.
ETSI
10 ETSI TS 101 671 V1.1.1 (2001-07)
[8] Void.
[9] Void.
[10] ETSI EN 300 061-1: "Integrated Services Digital Network (ISDN); Subaddressing (SUB)
supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 1: Protocol specification".
[11] Void.
[12] Void.
[13] Void.
[14] ETSI EN 300 097-1: "Integrated Services Digital Network (ISDN); Connected Line Identification
Presentation (COLP) supplementary service; Digital Subscriber Signalling System No. one
(DSS1) protocol; Part 1: Protocol specification".
[15] Void.
[16] Void.
[17] ETSI EN 300 138-1: "Integrated Services Digital Network (ISDN); Closed User Group (CUG)
supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 1: Protocol specification".
[18] Void.
[19] ETSI EN 300 185-1: "Integrated Services Digital Network (ISDN); Conference call, add-on
(CONF) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 1: Protocol specification".
[20] ETSI EN 300 188-1: "Integrated Services Digital Network (ISDN); Three-Party (3PTY)
supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 1: Protocol specification".
[21] Void.
[22] Void.
[23] ETSI EN 300 286-1: "Integrated Services Digital Network (ISDN); User-to-User Signalling
(UUS) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 1: Protocol specification".
[24] Void.
[25] ETSI EN 300 369-1 (V1.2.4): "Integrated Services Digital Network (ISDN); Explicit Call Transfer
(ECT) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 1: Protocol specification".
[26] Void.
[27] Void.
[28] Void.
[29] ETSI EN 300 196-1 (V1.2.2): "Integrated Services Digital Network (ISDN); Generic functional
protocol for the support of supplementary services; Digital Subscriber Signalling System No. one
(DSS1) protocol; Part 1: Protocol specification".
[30] Void.
[31] Void.
[32] ETSI ETS 300 974: "Digital cellular telecommunications system (Phase 2+) (GSM);Mobile
Application Part (MAP) specification(GSM 09.02)".
ETSI
11 ETSI TS 101 671 V1.1.1 (2001-07)
[33] ITU-T Recommendation X.680: "Information technology - Abstract Syntax Notation One
(ASN.1): Specification of basic notation".
[34] ITU-T Recommendation X.690: "Information technology - ASN.1 encoding rules - Specification
of Basic Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding
Rules (DER)".
[35] ITU-T Recommendation X.880: "Information technology - Remote Operations: Concepts, model
and notation".
[36] ITU-T Recommendation X.881: "Information technology - Remote Operations: OSI realizations -
Remote Operations Service Element (ROSE) service definition".
[37] ITU-T Recommendation X.882: "Information technology - Remote Operations: OSI realizations -
Remote Operations Service Element (ROSE) protocol specification".
[38] Void.
[39] ETSI EN 300 122-1: "Integrated Services Digital Network (ISDN); Generic keypad protocol for
the support of supplementary services; Digital Subscriber Signalling System No. one (DSS1)
protocol; Part 1: Protocol specification".
[40] Void.
[41] ETSI EN 300 940: "Digital cellular communications system (Phase 2+) (GSM); Mobile radio
interface layer 3 specification".
[42] ETSI TS 101 509: "Digital cellular telecommunications system (Phase 2+) (GSM);
Lawful interception; Stage 2 (GSM 03.33)".
[43] ETSI TS 100 927: "Digital cellular telecommunications system (Phase 2+) (GSM); Numbering,
addressing and identification (GSM 03.03)".
[44] ETSI EN 301 344: "Digital cellular telecommunications system (Phase 2+) (GSM); General
Packet Radio Service (GPRS); Service description; Stage 2 (GSM 03.60)".
[45] ETSI TS 101 347: "Digital cellular telecommunications system (Phase 2+) (GSM); General Packet
Radio Service (GPRS); GPRS Tunnelling Protocol (GTP) across Gn and Gp Interface
(GSM 09.60)".
[46] RFC 959: "File Transfer Protocol (FTP)".
[47] RFC 2228: "FTP Security Extensions".
[48] ITU-T recommendation Q.763: "Signalling System No.7 - ISDN User Part formats and codes".
[49] ETSI TS 101 393: "Digital cellular telecommunications system (Phase 2+) (GSM); General Packet
Radio Service (GPRS); GPRS Charging (GSM 12.15)".
[50] Void.
[51] RFC 791: "Internet Protocol".
[52] RFC 793: "Transmission Control Protocol".
[53] ETSI TR 101 876: "Telecommunications security; Lawful Interception (LI); Description of GPRS
HI3".
[54] ETSI ETS 300 089: "Integrated Services Digital Network (ISDN); Calling Line Identification
Presentation (CLIP) supplementary service; Service description".
[55] ETSI TS 101 940: "Digital cellular telecommunications system (Phase 2+) (GSM);Mobile radio
interface layer 3 specification(GSM 04.08)".
[56] ITU-T Recommendation Q.931: "ISDN user-network interface layer 3 specification for basic call
control".
ETSI
12 ETSI TS 101 671 V1.1.1 (2001-07)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
access provider: provides a user of some network with access from the user's terminal to that network
NOTE 1: This definition applies specifically for the present document. In a particular case, the access provider and
network operator may be a common commercial entity.
activation/deactivation of supplementary services: procedures for activation, which is the operation of bringing the
service into the "ready for invocation" state, and deactivation, which is the complementary action
(to) buffer: temporary
...