SIST ETS 300 392-10-20:1999

Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 10: Supplementary services stage 1; Sub-part 20: Discreet Listening (DL)

Analysis of predicted needs for digital trunked systems in Europe; definition of services to be provided; analysis of spectrum req ments; characteristics of relevant interfaces Contains: TETRA 03.60 to 03.85

Prizemni snopovni radio (TETRA) - Govor in podatki (V+D) - 10. del: Dopolnilne storitve stopnje 1 - 20. poglavje: Neopazno poslušanje

General Information

• Status: Published
• Publication Date: 31-Oct-1999
• ICS: 33.070.10 - Terrestrial Trunked Radio (TETRA)
• Technical Committee: RES - Radio equipment and systems
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Nov-1999
• Due Date: 01-Nov-1999
• Completion Date: 01-Nov-1999
• Mandate: T-172-1A
• Ref Project: ETSI ETS 300 392-10-20 ed.2 (1999-05) - Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 10: Supplementary services stage 1; Sub-part 20: Discreet Listening (DL)

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Prizemni snopovni radio (TETRA) - Govor in podatki (V+D) - 10. del: Dopolnilne storitve stopnje 1 - 20. poglavje: Neopazno poslušanjeTerrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 10: Supplementary services stage 1; Sub-part 20: Discreet Listening (DL)33.070.10Prizemni snopovni radio (TETRA)Terrestrial Trunked Radio (TETRA)ICS:Ta slovenski standard je istoveten z:ETS 300 392-10-20 E23SIST ETS 300 392-10-20:1999en01-MXOLM-19993SIST ETS 300 392-10-20:1999SLOVENSKI
STANDARD
EUROPEANETS 300 392-10-20TELECOMMUNICATIONMay 1999STANDARDSecond EditionSource: TETRAReference: RE/TETRA-03001-10-20ICS:33.020Key words:Data, discrete, radio, speech, stage 1, supplementary services, TETRATerrestrial Trunked Radio (TETRA);Voice plus Data (V+D);Part 10: Supplementary services stage 1;Sub-part 20: Discreet Listening (DL)ETSIEuropean Telecommunications Standards InstituteETSI SecretariatPostal address: F-06921 Sophia Antipolis CEDEX - FRANCEOffice address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCEInternet: [e-mail] - http://www.etsi.orgTel.: [phone] - Fax: [phone]Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and theforegoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1999. All rights reserved.SIST ETS 300 392-10-20:1999

Page 2ETS 300 392-10-20: May 1999Whilst every care has been taken in the preparation and publication of this document, errors in content,typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to"ETSI Standards Making Support Dept." at the address shown on the title page.SIST ETS 300 392-10-20:1999

Page 3ETS 300 392-10-20: May 1999ContentsForeword.51Scope.72References.73Definitions and abbreviations.73.1Definitions.73.2Abbreviations.83.2.1General abbreviations.83.2.2Supplementary service abbreviations.84SS-DL stage 1 specification.94.1Description.94.1.1General description.94.1.2Qualifications on applicability to telecommunication services.94.2Procedures.94.2.1Provision/Withdrawal.94.2.2Normal procedures.104.2.2.1Activation, Deactivation, Definition, Registration,Interrogation, Cancellation.104.2.2.1.1Activation.104.2.2.1.2Deactivation.104.2.2.1.3Definition.104.2.2.1.4Registration.104.2.2.1.5Interrogation.114.2.2.1.6Cancellation.114.2.2.2Invocation and operation.114.2.2.2.1Basic operation.114.2.2.2.2Forced release.114.2.2.2.3Intrusion.114.2.3Exceptional procedures.124.2.3.1Activation, Deactivation, Definition, Registration,Interrogation, Cancellation.124.2.3.1.1Activation.124.2.3.1.2Deactivation.124.2.3.1.3Definition.124.2.3.1.4Registration.124.2.3.1.5Interrogation.124.2.3.1.6Cancellation.124.2.3.2Invocation and operation.134.3Interactions with other supplementary services.134.3.1Calling Line Identification Presentation (CLIP).134.3.2Connected Line Identification Presentation (COLP).134.3.3Calling/Connected Line Identification Restriction (CLIR).134.3.4Call Report (CR).134.3.5Talking Party Identification (TPI).134.3.6Call Forwarding Unconditional (CFU).134.3.7Call Forwarding on Busy (CFB).134.3.8Call Forwarding on No Reply (CFNRy).134.3.9Call Forwarding on Not Reachable (CFNR).134.3.10List Search Call (LSC).134.3.11Call Authorized by Dispatcher (CAD).134.3.12Short Number Addressing (SNA).134.3.13Area Selection (AS).144.3.14Access Priority (AP).144.3.15Priority Call (PC).14SIST ETS 300 392-10-20:1999

Page 4ETS 300 392-10-20: May 19994.3.16Call Waiting (CW).144.3.17Call Hold (HOLD).144.3.18Automatic call completion.144.3.19Late Entry (LE).144.3.20Transfer of Control (TC).144.3.21Pre-emptive Priority Call (PPC).144.3.22Include Call (IC).144.3.23Advice of Charge (AC).144.3.24Barring of Outgoing Calls (BOC).144.3.25Barring of Incoming Calls (BIC).144.3.26Discreet Listening (DL).144.3.27Ambience Listening (AL).154.3.28Dynamic Group Number Assignment (DGNA).154.4Inter working considerations.154.5Overall SDL.15Annex A (informative):Bibliography.20History.21SIST ETS 300 392-10-20:1999

Page 5ETS 300 392-10-20: May 1999ForewordThis European Telecommunication Standard (ETS) has been produced by the Terrestrial Trunked Radio(TETRA) Project of the European Telecommunications Standards Institute (ETSI).This ETS is a multi-part standard and will consist of the following parts:Part 1:"General network design";Part 2:"Air Interface (AI)";Part 3:"Interworking at the Inter-System Interface (ISI)";Part 4:"Gateways basic operation";Part 5:"Peripheral Equipment Interface (PEI)";Part 6:"Line connected Station (LS)";Part 7:"Security";Part 9:"General requirements for supplementary services";Part 10:"Supplementary services stage 1";Part 11:"Supplementary services stage 2";Part 12:"Supplementary services stage 3";Part 13:"SDL Model of the Air Interface (AI)";Part 14:"Protocol Implementation Conformance Statement (PICS) proforma specification".Transposition datesDate of adoption of this ETS:9 April 1999Date of latest announcement of this ETS (doa):31 July 1999Date of latest publication of new National Standardor endorsement of this ETS (dop/e):31 January 2000Date of withdrawal of any conflicting National Standard (dow):31 January 2000SIST ETS 300 392-10-20:1999

Page 6ETS 300 392-10-20: May 1999Blank pageSIST ETS 300 392-10-20:1999

Page 7ETS 300 392-10-20: May 19991ScopeThis European Telecommunication Standard (ETS) defines the stage 1 specifications of the DiscreetListening (DL) supplementary service for the Terrestrial Trunked Radio (TETRA) as provided by Europeanoperators. Stage 1 is an overall service description from the users point of view but does not deal with thedetails of the human interface itself.This ETS specifies the service description of the supplementary service and the procedures to beexpected with successful and unsuccessful outcomes. In addition this ETS specifies the interactions withother TETRA supplementary services and inter-working considerations.Charging principles are outside the scope of this ETS.The DL supplementary service shall enable an authorized user to listen to one or more communicationsbetween TETRA subscribers (Mobile Station (MS) or Line Station (LS)) without any indication to any userthat the communication is being monitored.As options, the authorized user shall be able to intrude into the existing call and shall be able to forcefullyclear the monitored call without call owner consent (in the case of a group call).2ReferencesThis ETS incorporates by dated and undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publicationsapply to this ETS only when incorporated in it by amendment or revision. For undated references the latestedition of the publication referred to applies.[1]ITU-T Recommendation Z.100 (1993): "CCITT Specification and DescriptionLanguage (SDL)".3Definitions and abbreviations3.1DefinitionsFor the purposes of this ETS, the following definitions apply:affected user: individual or group who’s calls are monitoredauthorized user: user who is responsible for the activation and deactivation of the service. Theauthorized user may also interrogate the service and profile access. The authorized user is the monitoringuser as wellLine Station (LS): physical grouping that contains all of the fixed equipment that is used to obtainterrestrial access to TETRA servicesbearer service: type of telecommunication service that provides the capability for the transmission ofsignals between user-network interfaces. For this ETS, this involves circuit-mode onlyMobile Station (MS): physical grouping that contains all of the mobile equipment that is used to obtainTETRA services. By definition, a mobile station contains at least one Mobile Radio Stack (MRS)monitoring party: authorized user who requests discreet listeningserved user: monitored userSupplementary Service (SS): supplementary service modifies or supplements a bearer service or ateleservice. A supplementary service cannot be offered to a customer as a stand alone service. It shouldbe offered in combination with a bearer service or a teleserviceSIST ETS 300 392-10-20:1999

Page 8ETS 300 392-10-20: May 1999Switching And Management Infrastructure (SwMI): all of the TETRA equipment for a Voice plus Data(V+D) network except for subscriber terminals. The SwMI enables subscriber terminals to communicatewith each other via the SwMIuser group: those TETRA users, terminals or gateways between which any individual or groupcommunication shall be monitoredteleservice: type of telecommunications service that provides the complete capability, including terminalequipment functions, for communication between users according to agreed protocols3.2Abbreviations3.2.1General abbreviationsFor the purposes of this ETS, the following general abbreviations apply:DMODirect Mode OperationSS-DLSupplementary Service Discreet ListeningISDNIntegrated Services Digital NetworkITSIIndividual TETRA Subscriber IdentityLSLine StationMSMobile StationMRSMobile radio StackSDL(Functional) Specification and Description LanguageSSSupplementary ServiceNOTE:The abbreviation SS is only used when referring to a specific supplementary service.SwMISwitching and Management InfrastructureTETRATrans-European Trunked RAdio3.2.2Supplementary service abbreviationsFor the purposes of this ETS, the following supplementary service abbreviations apply:ALAmbience ListeningAPAccess PriorityASArea SelectionBICBarring of Incoming CallsBOCBarring of Outgoing CallsCADCall Authorized by DispatcherCFBCall Forwarding on BusyCFNRyCall Forwarding on No ReplyCFNRcCall Forwarding on Not ReachableCFUCall Forwarding UnconditionalCLIPCalling Line Identification PresentationCLIRCalling/Connected Line Identification RestrictionCOLPCOnnected Line identification PresentationCRCall ReportCWCall WaitingDGNADynamic Group Number AssignmentDLDiscreet ListeningHOLDCall HOLDICInclude CallLELate EntryLSCList Search CallPCPriority CallPPCPre-emptive Priority CallSNAShort Number AddressingTCTransfer of ControlTPITalking Party IdentificationSIST ETS 300 392-10-20:1999

Page 9ETS 300 392-10-20: May 19994SS-DL stage 1 specification4.1Description4.1.1General descriptionDiscreet listening shall be defined as the facility whereby one authorized user at a time may listen tocommunications between TETRA subscribers (MS or LS) without any indication to any subscriber that thecommunication is being monitored. Identification of the talking party shall be given to the monitoring party.There can be several authorized users but only one is active for the SS-DL at a time. As animplementation option the monitoring party may further be allowed to enter into the conversation and/ormay clear the call if required.For security reasons, access to/from a non TETRA network (PSTN/ISDN/GSM) is outsi
...

SLOVENSKI STANDARD
01-november-1999
Prizemni snopovni radio (TETRA) - Govor in podatki (V+D) - 10. del: Dopolnilne
storitve stopnje 1 - 20. poglavje: Neopazno poslušanje
Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 10: Supplementary
services stage 1; Sub-part 20: Discreet Listening (DL)
Ta slovenski standard je istoveten z: ETS 300 392-10-20 Edition 2
ICS:
33.070.10 Prizemni snopovni radio Terrestrial Trunked Radio
(TETRA) (TETRA)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN ETS 300 392-10-20
TELECOMMUNICATION May 1999
STANDARD Second Edition
Source: TETRA Reference: RE/TETRA-03001-10-20
ICS: 33.020
Key words: Data, discrete, radio, speech, stage 1, supplementary services, TETRA
Terrestrial Trunked Radio (TETRA);
Voice plus Data (V+D);
Part 10: Supplementary services stage 1;
Sub-part 20: Discreet Listening (DL)
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Internet: [e-mail] - http://www.etsi.org
Tel.: [phone] - Fax: [phone]
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 1999. All rights reserved.

Page 2
ETS 300 392-10-20: May 1999
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Standards Making Support Dept." at the address shown on the title page.

Page 3
ETS 300 392-10-20: May 1999
Contents
Foreword.5
1 Scope .7
2 References.7
3 Definitions and abbreviations .7
3.1 Definitions .7
3.2 Abbreviations .8
3.2.1 General abbreviations .8
3.2.2 Supplementary service abbreviations.8
4 SS-DL stage 1 specification .9
4.1 Description.9
4.1.1 General description .9
4.1.2 Qualifications on applicability to telecommunication services.9
4.2 Procedures.9
4.2.1 Provision/Withdrawal.9
4.2.2 Normal procedures.10
4.2.2.1 Activation, Deactivation, Definition, Registration,
Interrogation, Cancellation.10
4.2.2.1.1 Activation .10
4.2.2.1.2 Deactivation .10
4.2.2.1.3 Definition.10
4.2.2.1.4 Registration.10
4.2.2.1.5 Interrogation.11
4.2.2.1.6 Cancellation .11
4.2.2.2 Invocation and operation .11
4.2.2.2.1 Basic operation .11
4.2.2.2.2 Forced release.11
4.2.2.2.3 Intrusion .11
4.2.3 Exceptional procedures.12
4.2.3.1 Activation, Deactivation, Definition, Registration,
Interrogation, Cancellation.12
4.2.3.1.1 Activation .12
4.2.3.1.2 Deactivation .12
4.2.3.1.3 Definition.12
4.2.3.1.4 Registration.12
4.2.3.1.5 Interrogation.12
4.2.3.1.6 Cancellation .12
4.2.3.2 Invocation and operation .13
4.3 Interactions with other supplementary services.13
4.3.1 Calling Line Identification Presentation (CLIP).13
4.3.2 Connected Line Identification Presentation (COLP).13
4.3.3 Calling/Connected Line Identification Restriction (CLIR) .13
4.3.4 Call Report (CR).13
4.3.5 Talking Party Identification (TPI) .13
4.3.6 Call Forwarding Unconditional (CFU).13
4.3.7 Call Forwarding on Busy (CFB).13
4.3.8 Call Forwarding on No Reply (CFNRy) .13
4.3.9 Call Forwarding on Not Reachable (CFNR) .13
4.3.10 List Search Call (LSC).13
4.3.11 Call Authorized by Dispatcher (CAD) .13
4.3.12 Short Number Addressing (SNA) .13
4.3.13 Area Selection (AS).14
4.3.14 Access Priority (AP).14
4.3.15 Priority Call (PC).14

Page 4
ETS 300 392-10-20: May 1999
4.3.16 Call Waiting (CW). 14
4.3.17 Call Hold (HOLD). 14
4.3.18 Automatic call completion. 14
4.3.19 Late Entry (LE). 14
4.3.20 Transfer of Control (TC) . 14
4.3.21 Pre-emptive Priority Call (PPC) . 14
4.3.22 Include Call (IC) . 14
4.3.23 Advice of Charge (AC). 14
4.3.24 Barring of Outgoing Calls (BOC) . 14
4.3.25 Barring of Incoming Calls (BIC) . 14
4.3.26 Discreet Listening (DL) . 14
4.3.27 Ambience Listening (AL). 15
4.3.28 Dynamic Group Number Assignment (DGNA) . 15
4.4 Inter working considerations. 15
4.5 Overall SDL . 15
Annex A (informative): Bibliography . 20
History. 21

Page 5
ETS 300 392-10-20: May 1999
Foreword
This European Telecommunication Standard (ETS) has been produced by the Terrestrial Trunked Radio
(TETRA) Project of the European Telecommunications Standards Institute (ETSI).
This ETS is a multi-part standard and will consist of the following parts:
Part 1: "General network design";
Part 2: "Air Interface (AI)";
Part 3: "Interworking at the Inter-System Interface (ISI)";
Part 4: "Gateways basic operation";
Part 5: "Peripheral Equipment Interface (PEI)";
Part 6: "Line connected Station (LS)";
Part 7: "Security";
Part 9: "General requirements for supplementary services";
Part 10: "Supplementary services stage 1";
Part 11: "Supplementary services stage 2";
Part 12: "Supplementary services stage 3";
Part 13: "SDL Model of the Air Interface (AI)";
Part 14: "Protocol Implementation Conformance Statement (PICS) proforma specification".
Transposition dates
Date of adoption of this ETS: 9 April 1999
Date of latest announcement of this ETS (doa): 31 July 1999
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 January 2000
Date of withdrawal of any conflicting National Standard (dow): 31 January 2000

Page 6
ETS 300 392-10-20: May 1999
Blank page
Page 7
ETS 300 392-10-20: May 1999
1 Scope
This European Telecommunication Standard (ETS) defines the stage 1 specifications of the Discreet
Listening (DL) supplementary service for the Terrestrial Trunked Radio (TETRA) as provided by European
operators. Stage 1 is an overall service description from the users point of view but does not deal with the
details of the human interface itself.
This ETS specifies the service description of the supplementary service and the procedures to be
expected with successful and unsuccessful outcomes. In addition this ETS specifies the interactions with
other TETRA supplementary services and inter-working considerations.
Charging principles are outside the scope of this ETS.
The DL supplementary service shall enable an authorized user to listen to one or more communications
between TETRA subscribers (Mobile Station (MS) or Line Station (LS)) without any indication to any user
that the communication is being monitored.
As options, the authorized user shall be able to intrude into the existing call and shall be able to forcefully
clear the monitored call without call owner consent (in the case of a group call).
2 References
This ETS incorporates by dated and undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this ETS only when incorporated in it by amendment or revision. For undated references the latest
edition of the publication referred to applies.
[1] ITU-T Recommendation Z.100 (1993): "CCITT Specification and Description
Language (SDL)".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of this ETS, the following definitions apply:
affected user: individual or group who’s calls are monitored
authorized user: user who is responsible for the activation and deactivation of the service. The
authorized user may also interrogate the service and profile access. The authorized user is the monitoring
user as well
Line Station (LS): physical grouping that contains all of the fixed equipment that is used to obtain
terrestrial access to TETRA services
bearer service: type of telecommunication service that provides the capability for the transmission of
signals between user-network interfaces. For this ETS, this involves circuit-mode only
Mobile Station (MS): physical grouping that contains all of the mobile equipment that is used to obtain
TETRA services. By definition, a mobile station contains at least one Mobile Radio Stack (MRS)
monitoring party: authorized user who requests discreet listening
served user: monitored user
Supplementary Service (SS): supplementary service modifies or supplements a bearer service or a
teleservice. A supplementary service cannot be offered to a customer as a stand alone service. It should
be offered in combination with a bearer service or a teleservice

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ETS 300 392-10-20: May 1999
Switching And Management Infrastructure (SwMI): all of the TETRA equipment for a Voice plus Data
(V+D) network except for subscriber terminals. The SwMI enables subscriber terminals to communicate
with each other via the SwMI
user group: those TETRA users, terminals or gateways between which any individual or group
communication shall be monitored
teleservice: type of telecommunications service that provides the complete capability, including terminal
equipment functions, for communication between users according to agreed protocols
3.2 Abbreviations
3.2.1 General abbreviations
For the purposes of this ETS, the following general abbreviations apply:
DMO Direct Mode Operation
SS-DL Supplementary Service Discreet Listening
ISDN Integrated Services Digital Network
ITSI Individual TETRA Subscriber Identity
LS Line Station
MS Mobile Station
MRS Mobile radio Stack
SDL (Functional) Specification and Description Language
SS Supplementary Service
NOTE: The abbreviation SS is only used when referring to a specific supplementary service.
SwMI Switching and Management Infrastructure
TETRA Trans-European Trunked RAdio
3.2.2 Supplementary service abbreviations
For the purposes of this ETS, the following supplementary service abbreviations apply:
AL Ambience Listening
AP Access Priority
AS Area Selection
BIC Barring of Incoming Calls
BOC Barring of Outgoing Calls
CAD Call Authorized by Dispatcher
CFB Call Forwarding on Busy
CFNRy Call Forwarding on No Reply
CFNRc Call Forwarding on Not Reachable
CFU Call Forwarding Unconditional
CLIP Calling Line Identification Presentation
CLIR Calling/Connected Line Identification Restriction
COLP COnnected Line identification Presentation
CR Call Report
CW Call Waiting
DGNA Dynamic Group Number Assignment
DL Discreet Listening
HOLD Call HOLD
IC Include Call
LE Late Entry
LSC List Search Call
PC Priority Call
PPC Pre-emptive Priority Call
SNA Short Number Addressing
TC Transfer of Control
TPI Talking Party Identification

Page 9
ETS 300 392-10-20: May 1999
4 SS-DL stage 1 specification
4.1 Description
4.1.1 General description
Discreet listening shall be defined as the facility whereby one authorized user at a time may listen to
communications between TETRA subscribers (MS or LS) without any indication to any subscriber that the
communication is being monitored. Identification of the talking party shall be given to the monitoring party.
There can be several authorized users but only one is active for the SS-DL at a time. As an
implementation option the monitoring party may further be allowed to enter into the conversation and/or
may clear the call if required.
For security reasons, access to/from a non TETRA network (PSTN/ISDN/GSM) is outside the scope of
this ETS.
4.1.2 Qualifications on applicability to telecommu
...