SIST ETS 300 392-10-6 E1:2003

• Abstract:

  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

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.070.10 - Terrestrial Trunked Radio (TETRA)
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Mandate: T-172-1A
• Ref Project: ETSI ETS 300 392-10-6 ed.1 (1996-04) - Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 10: Supplementary services stage 1; Sub-part 6: Call authorized by dispatcher

Overview

SIST ETS 300 392-10-6 E1:2003 is a European standard detailing the “Call Authorized by Dispatcher” (SS-CAD) supplementary service for Terrestrial Trunked Radio (TETRA) systems. Developed by SIST and aligned with ETSI guidance, this part of the TETRA standard addresses user requirements and operational procedures for ensuring that specific TETRA calls are only permitted after authorization by an assigned dispatcher. It forms a crucial part of managing communication in digital, trunked radio systems deployed across Europe, focusing on enhanced control, security, and regulatory compliance for organizations and agencies utilizing TETRA networks.

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Key Topics

• Supplementary Service Definition: The standard specifies the SS-CAD, allowing dispatchers to approve or reject call requests before they proceed. This capability enhances supervision of communications, directly supporting operational security and workflow management.

• Operational Scenarios:

  • Outgoing calls from restricted users needing dispatcher authorization.
  • Incoming calls to specific users or gateways requiring prior approval.
  • Conditions triggering call routing to dispatcher, such as user category, restricted service, destination/source addresses, or restricted areas.

• Applicability: SS-CAD is intended for all TETRA circuit mode teleservices and bearer services but does not apply to Short Data Service (SDS).

• Provision and Withdrawal: The service is activated via prior arrangement with the network service provider and can be withdrawn as needed.

• Authorization Configurations:

  • Restricted users, basic services, source/destination addresses, and areas can be specified for control.
  • Notifications of call interception and dispatcher identity are configurable.

• Dispatcher Actions: Dispatchers receive call requests for authorization, can interrogate users on call purposes, and provide acceptance or barring instructions, with the system managing notifications and call state.

• Interactions with Other Services: The standard clarifies that SS-CAD typically operates independently and does not interact with most other supplementary TETRA services, with some exceptions (such as precedence of pre-emptive priority calls).

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Applications

The SS-CAD service defined in SIST ETS 300 392-10-6 E1:2003 addresses use cases where strict supervision is vital, including:

• Public Safety and Emergency Services: Ensures sensitive communications are controlled and only authorized by designated personnel, reducing misuse and congestion in critical scenarios.
• Transport and Utilities Sectors: Enables operation centers to approve mission-critical calls, supporting coordination, safety and compliance in high-stakes environments.
• Industrial Operations: Offers secure call restriction and oversight for industrial safety management and regulatory adherence.
• Large-scale Events or Special Operations: Supports temporary communication controls during events requiring heightened oversight.

These capabilities contribute to secure, reliable trunked radio operations, vital for mission-critical environments where control, traceability, and rapid response are mandatory.

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Related Standards

The SS-CAD supplementary service as described in this document is part of a comprehensive suite of standards supporting TETRA:

• SIST ETS 300 392 Series Parts 1-16: Covering network design, air interface, inter-working, gateways, security, management, performance, and detailed supplementary services specifications.
• ETSI EN 300 392-2 & 300 392-3: Air interface protocols and interworking requirements for interoperability among TETRA systems.
• ITU-T Recommendations:
  • I.130: Method for telecommunication service characterization.
  • Z.100: Specification and Description Language (SDL) for dynamic system description.

Implementers should reference these related publications to ensure full alignment with TETRA system requirements, supplementary service behavior, and European digital radio communication standards.

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Keywords: TETRA, Terrestrial Trunked Radio, call authorized by dispatcher, SS-CAD, digital trunked systems, supplementary services, dispatcher authorization, public safety communications, ETSI standard, SIST, mission-critical communications, Europe, spectrum requirements, radio equipment, V+D (Voice plus Data).

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 10: Supplementary services stage 1; Sub-part 6: Call authorized by dispatcher33.070.10Prizemni snopovni radio (TETRA)Terrestrial Trunked Radio (TETRA)ICS:Ta slovenski standard je istoveten z:ETS 300 392-10-6 Edition 1SIST ETS 300 392-10-6 E1:2003en01-december-2003SIST ETS 300 392-10-6 E1:2003SLOVENSKI
STANDARD
EUROPEANETS 300 392-10-06TELECOMMUNICATIONApril 1996STANDARDSource: ETSI TC-RESReference: DE/RES-06001-10-06ICS:33.020, 33.060.50Key words:TETRA, V+DRadio Equipment and Systems (RES);Trans-European Trunked Radio (TETRA);Voice plus Data (V+D);Part 10: Supplementary services stage 1;Part 10-06: Call authorized by dispatcherETSIEuropean Telecommunications Standards InstituteETSI SecretariatPostal address: F-06921 Sophia Antipolis CEDEX - FRANCEOffice address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCEX.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: [e-mail].: [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 1996. All rights reserved.SIST ETS 300 392-10-6 E1:2003

Page 2ETS 300 392-10-06: April 1996Whilst 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 Editing and Committee Support Dept." at the address shown on the title page.SIST ETS 300 392-10-6 E1:2003

Page 3ETS 300 392-10-06: April 1996ContentsForeword.51Scope.72Normative references.73Definitions and abbreviations.73.1Definitions.73.2Abbreviations.73.2.1General abbreviations.73.2.2Supplementary service abbreviations.84Supplementary Service Call Authorized by Dispatcher (SS-CAD) stage 1 specification.84.1Description.84.1.1General description.84.1.2Qualifications on applicability to telecommunication services.94.2Procedures.94.2.1Provision and withdrawal.94.2.1.1Category of calling user.94.2.1.2Restricted basic service.104.2.1.3Restricted destination address.104.2.1.4Restricted source address.104.2.1.5Restricted area.104.2.1.6Verification and acceptance.114.2.2Normal procedures.114.2.2.1Activation, deactivation, definition, registration,interrogation, and cancellation.114.2.2.1.1Activation and deactivation.114.2.2.1.2Definition.114.2.2.1.3Registration.114.2.2.1.4Interrogation.114.2.2.2Invocation and operation.114.2.2.2.1Outgoing calls.114.2.2.2.2Incoming calls.124.2.2.2.3Category of calling user.124.2.2.2.4Restricted basic service.124.2.2.2.5Restricted destination address.124.2.2.2.6Restricted area.124.2.2.3Cancellation.124.2.3Exceptional procedures.134.2.3.1Activation, deactivation, definition, registration,interrogation, and cancellation.134.2.3.1.1Activation.134.2.3.1.2Deactivation.134.2.3.1.3Definition.134.2.3.1.4Registration.134.2.3.1.5Interrogation.144.2.3.2Cancellation.144.2.3.3Invocation and operation.144.3Interactions with other supplementary services.144.3.1Calling Line Identification Presentation (SS-CLIP).144.3.2Connected Line identification Presentation (SS-COLP).144.3.3Calling/Connected Line Identification Restriction (SS-CLIR).144.3.4Call report.144.3.5Talking Party Identification (SS-TPI).144.3.6Call Forwarding Unconditional (SS-CFU).144.3.7Call Forwarding on Busy (SS-CFB).14SIST ETS 300 392-10-6 E1:2003

Page 4ETS 300 392-10-06: April 19964.3.8Call Forwarding on No Reply (SS-CFNRy).144.3.9Call Forwarding on Not Reachable (SS-CFNRc).154.3.10List Search Call (SS-LSC).154.3.11Call authorized by dispatcher.154.3.12Short Number Addressing (SS-SNA).154.3.13Area Selection (SS-AS).154.3.14Access Priority (SS-AP).154.3.15Priority Call (SS-PC).154.3.16Call Waiting (SS-CW).154.3.17Call Hold (SS-HOLD).154.3.18Call Completion to Busy Subscriber (SS-CCBS).154.3.19Late Entry (SS-LE).154.3.20Transfer of Control (SS-TC).154.3.21Pre-emptive Priority Call (SS-PPC).154.3.22Include Call (SS-IC).164.3.23Advice of Charge (SS-AoC).164.3.24Barring of Outgoing Calls (SS-BOC).164.3.25Barring of Incoming Calls (SS-BIC).164.3.26Discreet Listening (SS-DL).164.3.27Ambience Listening (SS-AL).164.3.28Dynamic Group Number Assignment (SS-DGNA).164.3.29Call Completion on No Reply (SS-CCNR).164.3.30Call retention.164.4Inter-working considerations.164.5Overall SDL.16History.19SIST ETS 300 392-10-6 E1:2003

Page 5ETS 300 392-10-06: April 1996ForewordThis European Telecommunication Standard (ETS) has been produced by the Radio Equipment andSystems (RES) Technical Committee 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:"Inter-working", (DE/RES-06001-3).Part 4:"Gateways", (DE/RES-06001-4).Part 5:"Terminal equipment interface", (DE/RES-06001-5).Part 6:"Line connected stations", (DE/RES-06001-6).Part 7:"Security".Part 8:"Management services", (DE/RES-06001-8).Part 9:"Performance objectives", (DE/RES-06001-9).Part 10:"Supplementary services stage 1".Part 11:"Supplementary services stage 2", (DE/RES-06001-11).Part 12:"Supplementary services stage 3", (DE/RES-06001-12).Part 13:"SDL Model of the Air Interface", (DE/RES-06001-13).Part 14:"PICS Proforma", (DE/RES-06001-14).Part 15:"Inter-working - Extended Operations", (DE/RES-06001-15).Part 16:"Gateways for Supplementary Services", (DE/RES-06001-16).Transposition datesDate of adoption of this ETS:1 March 1996Date of latest announcement of this ETS (doa):31 July 1996Date of latest publication of new National Standardor endorsement of this ETS (dop/e):31 January 1997Date of withdrawal of any conflicting National Standard (dow):31 January 1997SIST ETS 300 392-10-6 E1:2003

Page 6ETS 300 392-10-06: April 1996Blank pageSIST ETS 300 392-10-6 E1:2003

Page 7ETS 300 392-10-06: April 19961ScopeThis European Telecommunication Standard (ETS) defines the stage 1 specifications of theSupplementary Service Call Authorized by Dispatcher (SS-CAD) for the Trans-European Trunked RAdioSystem (TETRA). Stage 1 is an overall service description from the users point of view but does not dealwith the details 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 shall be outside the scope of this ETS.The SS-CAD ensures that predefined TETRA calls shall not proceed without first being authorized by adispatcher.2Normative referencesThis ETS incorporates, by dated or 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]CCITT Recommendation I.130 (1988): "Method for the characterization oftelecommunication services supported by an ISDN and network capabilities ofan ISDN".[2]ITU-T Recommendation Z.100 (1993): "Specification and Description Language(SDL)".3Definitions and abbreviations3.1DefinitionsFor the purposes of this ETS, the following definitions apply:broadcast call: A multipoint call in which the same information is transmitted simultaneously by thecalling terminal to all available terminals.outgoing call: A call which, from the viewpoint of an individual participant in the call, is initiated by thatparticipant.restricted user: The user (individual TETRA user or a user via a gateway) who is required to seekauthorization from the dispatcher before the request for service can proceed.served user: The user or a group of users, to whom the request for authorization shall be directed to. It isnormal that the served user is also the dispatcher that is responsible for that call.3.2Abbreviations3.2.1General abbreviationsFor the purposes of this ETS, the following general abbreviations apply:GTSIGroup TETRA Subscriber IdentityISDNIntegrated Services Digital NetworkITSIIndividual TETRA Subscriber IdentityLSLine StationSDL(Functional) Specification and Description LanguageSSSupplementary ServiceSIST ETS 300 392-10-6 E1:2003

Page 8ETS 300 392-10-06: April 1996NOTE:The abbreviation SS is only used when referring to a specific supplementary service.SwMISwitching and Management InfrastructureTETRATrans-European Trunked RAdioV+DVoice Plus Data3.2.2Supplementary service abbreviationsFor the purposes of this ETS, the following Supplementary Service abbreviations apply:SS-ALAmbience ListeningSS-AoCAdvice of ChargeSS-APAccess PrioritySS-ASArea SelectionSS-BICBarring of Incoming CallsSS-BOCBarring of Outgoing CallsSS-CADCall Authorized by DispatcherSS-CCBSCall Completion to Busy SubscriberSS-CCNRCall Completion on No ReplySS-CFBCall Forwarding on BusySS-CFNRyCall Forwarding on No ReplySS-CFNRcCall Forwarding on Not ReachableSS-CFUCall Forwarding UnconditionalSS-CLIPCalling Line Identification PresentationSS-CLIRCalling/Connected Line Identification RestrictionSS-COLPConnected Line Identification PresentationSS-CRCall ReportSS-CWCall WaitingSS-DGNADynamic Group Number AssignmentSS-DLDiscreet ListeningSS-HOLDCall HoldSS-ICInclude CallSS-LELate EntrySS-LSCList Search CallSS-PCPriority CallSS-PPCPre-emptive Priority CallSS-SNAShort Number AddressingSS-SDSShort Data ServiceSS-TCTransfer of ControlSS-TPITalking Party Identification4Supplementary Service Call Authorized by Dispatcher (SS-CAD) stage 1specification4.1Description4.1.1General descriptionSS-CAD is defined as the ability of the dispatcher to verify and approve a call request before the call isallowed to proceed.The supplementary service shall also apply to the option whereby the dispatcher authorization of incomingcall requests to specified TETRA addresses is required before the service can proceed. The specifiedTETRA addresses may be TETRA users or gateways. The incoming calls may be generated inside oroutside of the operator's TETRA domain.The service shall enable immediate interception of calls due to the following conditions:1)category of calling user;2)restricted basic service request;SIST ETS 300 392-10-6 E1:2003

Page 9ETS 300 392-10-06: April 19963)restricted destination or source address;4)restricted area.4.1.2Qualifications on applicability to telecommunication servicesSS-CAD shall be applicable to all TETRA circuit mode teleservices and bearer services. SS-CAD shall notbe applicable to Short Data Service (SDS).4.2Procedures4.2.1Provision and withdrawalThe SS-CAD supplementary service shall be provided by prior arrangement with the service provider.This service may be withdrawn by the service provider or upon request from the served user.Conditions for SS-CAD shall be defined and linked with the source, basic service request and destinationof the call as shown in table 1.Table 1: Implementation options, authorization conditionsImplementation optionsSourceBasic service requestDestinationCategory of calling userInternal TETRA number,restricted user's IndividualTETRA SubscriberIdentity (ITSI)TETRA teleservices andbearer servicesInternal TETRA numberExternal to TETRARestricted basic serviceInternal TETRA number,restricted user's ITSITETRA teleservices andbearer servicesInternal TETRA numberExternal to TETRARestricted destinationaddressInternal TETRA number,restricted user's ITSITETRA teleservices andbearer servicesInternal TETRA numberExternal to TETRARestricted destinationaddressOther TETRA systems orgatewaysSupported servicesInternal TETRA numberRestricted source addressInternal TETRA number,restricted user's ITSITETRA teleservices andbearer servicesInternal TETRA numberExternal to TETRARestricted source addressOther TETRA systems orgatewaysSupported servicesInternal TETRA numberRestricted areaInternal TETRA number,restricted user's ITSITETRA teleservices andbearer servicesSpecified TETRA areaAs an implementation option, the calling user may receive notification that the c
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