SIST EN 300 175-5 V1.7.1:2003

• Abstract:

  Maintenance update to include elements for the high speed DECT service.

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.070.30 - Digital Enhanced Cordless Telecommunications (DECT)
• ICS: 35.100.30 - Network layer
• 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
• Ref Project: ETSI EN 300 175-5 V1.7.1 (2003-07) - Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 5: Network (NWK) layer

Overview

SIST EN 300 175-5 V1.7.1:2003 is the Slovenian adoption of the European standard for Digital Enhanced Cordless Telecommunications (DECT), focusing on the Common Interface (CI) Network (NWK) layer. Developed by the Slovenski inštitut za standardizacijo (SIST) and harmonized with ETSI EN 300 175-5, this standard outlines the network layer specifications for DECT CI, with updates to accommodate high speed DECT services. The document is essential for manufacturers, system integrators, and network operators implementing cordless telecommunications solutions according to international best practices.

Key Topics

The standard covers a comprehensive set of network-layer procedures and protocols essential for DECT communication systems:

• Call Control (CC): Procedures for call setup, establishment, information exchange, modification, and release.
• Supplementary Services (SS): Management of additional network services such as keypad protocol, feature key management, and registration features.
• Connection Oriented Message Service (COMS): Protocol for establishing, transferring, suspending/resuming, and releasing connection-based messages.
• ConnectionLess Message Service (CLMS): Handling of fixed and variable length messages without connection-oriented setup.
• Mobility Management (MM): Procedures for authentication, identity management, location updating, access rights, parameter retrieval, and security (ciphering) to support portable devices across DECT infrastructure.
• Link Control Entity (LCE): Manages data link endpoints, establishment and release of data links, link suspension/resumption, message queuing, and paging requests.
• Message Structures: Detailed formats (S-FORMAT, B-FORMAT) for CC, SS, COMS, CLMS, MM, and LCE messages, including information elements and coding rules.

Applications

Implementing SIST EN 300 175-5 V1.7.1:2003 delivers practical benefits and ensures technical interoperability in DECT wireless communication systems, including:

• Cordless Telephony: Base stations and handsets using DECT for voice and data communication reliably exchange messages at the NWK layer.
• Wireless Office Solutions: Enables robust mobility management, handover, and secure communications for business telephony.
• Industrial and Home Automation: Devices leveraging DECT’s security and flexibility for control and monitoring across large facilities.
• Enhanced Services: Supports new and legacy supplementary services, such as multi-feature key management and advanced call handling.
• High-Speed Data Services: The maintenance update accommodates higher throughput DECT offerings, facilitating innovative applications.

By adhering to these network layer definitions, manufacturers and service providers ensure compatibility and consistent quality across a wide range of DECT-enabled solutions.

Related Standards

For complete DECT solutions, the following related standards should be considered alongside SIST EN 300 175-5 V1.7.1:2003:

• SIST EN 300 175-1: DECT Common Interface - Overview.
• SIST EN 300 175-2: DECT Physical Layer specifications.
• SIST EN 300 175-3: DECT Medium Access Control (MAC) layer.
• SIST EN 300 175-4: DECT Data Link Control (DLC) layer.
• ETSI EN 301 406: Harmonized standard covering essential requirements of DECT under the Radio Equipment Directive (RED).

These standards, when applied together, provide a comprehensive framework supporting the deployment, expansion, and maintenance of interoperable and future-ready DECT networks.

Keywords: DECT, Digital Enhanced Cordless Telecommunications, Network Layer, Common Interface, high speed DECT, cordless telephony, mobility management, supplementary services, wireless communication standard, SIST, ETSI EN 300 175-5.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 5: Network (NWK) layer35.100.30Omrežni slojNetwork layer33.070.30'(&7Digital Enhanced Cordless Telecommunications (DECT)ICS:Ta slovenski standard je istoveten z:EN 300 175-5 Version 1.7.1SIST EN 300 175-5 V1.7.1:2003en01-december-2003SIST EN 300 175-5 V1.7.1:2003SLOVENSKI
STANDARD
ETSI ETSI EN 300 175-5 V1.7.1 (2003-07) 2
Reference REN/DECT-000201-5 Keywords DECT, radio ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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ETSI ETSI EN 300 175-5 V1.7.1 (2003-07) 3
Contents Intellectual Property Rights.14 Foreword.14 1 Scope.15 2 References.15 3 Definitions and abbreviations.19 3.1 Definitions.19 3.2 Abbreviations.21 4 Overview of the NWK layer.23 5 Overview of procedures.25 5.1 General.25 5.2 Overview of Call Control (CC).25 5.2.1 General.25 5.2.2 Call establishment.26 5.2.2.1 Call setup.26 5.2.2.2 Service negotiation.26 5.2.3 Call connect.26 5.2.4 Call information.27 5.2.5 Service change.27 5.2.6 Call release.27 5.3 Overview of Supplementary Services (SS).27 5.3.1 General.27 5.3.2 Keypad protocol.28 5.3.3 Feature key management protocol.28 5.3.4 Functional protocol.28 5.4 Overview of Connection Oriented Message Service (COMS).29 5.4.1 General.29 5.4.2 COMS establishment.29 5.4.3 Service negotiation.29 5.4.4 COMS connect.29 5.4.5 COMS data transfer.30 5.4.6 COMS suspend and resume.30 5.4.7 COMS release.30 5.5 Overview of ConnectionLess Message Service (CLMS).30 5.5.1 Fixed length message service.30 5.5.2 Variable length message service.31 5.6 Overview of Mobility Management (MM).31 5.6.1 General.31 5.6.2 Identity procedures.31 5.6.3 Authentication procedures.32 5.6.4 Location procedures.32 5.6.5 Access rights procedures.32 5.6.6 Key allocation procedure.33 5.6.7 Parameter retrieval procedure.33 5.6.8 Ciphering related procedure.33 5.7 Overview of Link Control Entity (LCE).33 5.7.1 General.33 5.7.2 Data Link Endpoint Identifier (DLEI).34 5.7.3 Data link establishment.34 5.7.4 Data link re-establishment.34 5.7.5 Data link release.35 5.7.6 Data link suspend and resume.35 5.7.7 Queuing of messages.35 5.7.8 Request paging.35 SIST EN 300 175-5 V1.7.1:2003

ETSI ETSI EN 300 175-5 V1.7.1 (2003-07) 4
6 Message functional definitions.36 6.1 Overview of message structures.36 6.1.1 Messages.36 6.1.2 Information elements.36 6.2 Message summaries.37 6.2.1 Summary of CC messages.37 6.2.2 Summary of CISS messages.37 6.2.3 Summary of COMS messages.38 6.2.4 Summary of CLMS messages.38 6.2.5 Summary of MM messages.39 6.2.6 Summary of LCE messages.39 6.3 S-FORMAT message functional contents.40 6.3.1 S-FORMAT message overview.40 6.3.2 CC-messages.41 6.3.2.1 {CC-SETUP}.41 6.3.2.2 {CC-INFO}.42 6.3.2.3 {CC-SETUP-ACK}.43 6.3.2.4 {CC-CALL-PROC}.44 6.3.2.5 {CC-ALERTING}.45 6.3.2.6 {CC-CONNECT}.46 6.3.2.7 {CC-CONNECT-ACK}.47 6.3.2.8 {CC-RELEASE}.47 6.3.2.9 {CC-RELEASE-COM}.48 6.3.2.10 {CC-SERVICE-CHANGE}.49 6.3.2.11 {CC-SERVICE-ACCEPT}.49 6.3.2.12 {CC-SERVICE-REJECT}.50 6.3.2.13 {CC-NOTIFY}.50 6.3.2.14 {IWU-INFO}.51 6.3.3 SS-messages (call related and call independent).52 6.3.3.1 {FACILITY}.52 6.3.3.2 {HOLD}.52 6.3.3.3 {HOLD-ACK}.53 6.3.3.4 {HOLD-REJECT}.53 6.3.3.5 {RETRIEVE}.53 6.3.3.6 {RETRIEVE-ACK}.54 6.3.3.7 {RETRIEVE-REJECT}.54 6.3.3.8 {CISS-REGISTER}.55 6.3.3.9 {CISS-RELEASE-COM}.55 6.3.4 COMS-messages.56 6.3.4.1 {COMS-SETUP}.56 6.3.4.2 {COMS-INFO}.56 6.3.4.3 {COMS-ACK}.56 6.3.4.4 {COMS-CONNECT}.57 6.3.4.5 {COMS-RELEASE}.57 6.3.4.6 {COMS-RELEASE-COM}.58 6.3.4.7 {COMS-NOTIFY}.58 6.3.5 CLMS-message.59 6.3.5.1 {CLMS-VARIABLE}.59 6.3.6 MM-messages.60 6.3.6.1 {ACCESS-RIGHTS-ACCEPT}.60 6.3.6.2 {ACCESS-RIGHTS-REJECT}.60 6.3.6.3 {ACCESS-RIGHTS-REQUEST}.61 6.3.6.4 {ACCESS-RIGHTS-TERMINATE-ACCEPT}.61 6.3.6.5 {ACCESS-RIGHTS-TERMINATE-REJECT}.62 6.3.6.6 {ACCESS-RIGHTS-TERMINATE-REQUEST}.62 6.3.6.7 {AUTHENTICATION-REJECT}.63 6.3.6.8 {AUTHENTICATION-REPLY}.63 6.3.6.9 {AUTHENTICATION-REQUEST}.64 6.3.6.10 {CIPHER-REJECT}.64 6.3.6.11 {CIPHER-REQUEST}.65 6.3.6.12 {CIPHER-SUGGEST}.65 6.3.6.13 {DETACH}.66 SIST EN 300 175-5 V1.7.1:2003

ETSI ETSI EN 300 175-5 V1.7.1 (2003-07) 5
6.3.6.14 {IDENTITY-REPLY}.66 6.3.6.15 {IDENTITY-REQUEST}.67 6.3.6.16 {KEY-ALLOCATE}.67 6.3.6.17 {LOCATE-ACCEPT}.68 6.3.6.18 {LOCATE-REJECT}.68 6.3.6.19 {LOCATE-REQUEST}.69 6.3.6.20 {MM-INFO-ACCEPT}.69 6.3.6.21 {MM-INFO-REJECT}.70 6.3.6.22 {MM-INFO-REQUEST}.70 6.3.6.23 {MM-INFO-SUGGEST}.71 6.3.6.24 {TEMPORARY-IDENTITY-ASSIGN}.71 6.3.6.25 {TEMPORARY-IDENTITY-ASSIGN-ACK}.72 6.3.6.26 {TEMPORARY-IDENTITY-ASSIGN-REJ}.72 6.3.6.27 {MM-IWU}.72 6.3.7 LCE-messages.73 6.3.7.1 {LCE-PAGE-RESPONSE}.73 6.3.7.2 {LCE-PAGE-REJECT}.73 6.4 B-FORMAT message functional contents.74 6.4.1 B-FORMAT message overview.74 6.4.2 {LCE-REQUEST-PAGE}.74 6.4.3 {CLMS-FIXED}.75 7 S-FORMAT message structures.75 7.1 Overview.75 7.2 Protocol Discrimination (PD) element.76 7.3 Transaction Identifier (TI) element.76 7.4 Message type element.77 7.4.1 Messages for CC.78 7.4.2 Messages for SS.78 7.4.3 Messages for COMS.78 7.4.4 Messages for CLMS.79 7.4.5 Messages for MM.79 7.4.6 Messages for LCE.79 7.5 Other information elements.80 7.5.1 Coding rules.80 7.5.2 Extensions of codesets.82 7.5.3 Locking shift procedure.82 7.5.4 Non-locking shift procedure.83 7.5.5 Display and keypad elements.83 7.5.6 Repeated elements.83 7.6 Fixed length information elements.84 7.6.1 Summary.84 7.6.2 Sending complete, delimiter request and use TPUI.84 7.6.3 Repeat indicator.85 7.6.4 Basic service.85 7.6.5 Single display.86 7.6.6 Single keypad.86 7.6.7 Release reason.86 7.6.8 Signal.87 7.6.9 Timer restart.88 7.6.10 Test hook control.89 7.7 Variable length information elements.89 7.7.1 Summary.89 7.7.2 Allocation type.91 7.7.3 Alphanumeric.92 7.7.4 Auth type.93 7.7.5 Call attributes.94 7.7.6 Call identity.97 7.7.7 Called party number.97 7.7.8 Called party subaddress.98 7.7.9 Calling party number.99 7.7.10 Cipher info.100 SIST EN 300 175-5 V1.7.1:2003

ETSI ETSI EN 300 175-5 V1.7.1 (2003-07) 6
7.7.11 Connection attributes.101 7.7.12 Connection identity.103 7.7.13 Duration.104 7.7.14 End-to-end compatibility.105 7.7.15 Facility.108 7.7.16 Feature activate.108 7.7.17 Feature indicate.110 7.7.18 Fixed identity.112 7.7.19 Identity type.113 7.7.20 Info type.114 7.7.21 InterWorking Unit (IWU) attributes.115 7.7.22 IWU packet.120 7.7.23 IWU to IWU.121 7.7.24 Key.123 7.7.25 Location area.123 7.7.26 Multi-display.124 7.7.27 Multi-keypad.125 7.7.28 NetWorK (NWK) assigned identity.125 7.7.29 Network parameter.126 7.7.30 Portable identity.127 7.7.31 Progress indicator.131 7.7.32 RAND.132 7.7.33 Rate parameters.132 7.7.34 Reject reason.133 7.7.35 RES.134 7.7.36 RS.135 7.7.37 Segmented info.135 7.7.38 Service change info.136 7.7.39 Service class.137 7.7.40 Setup capability.138 7.7.41 Terminal capability.139 7.7.42 Transit delay.143 7.7.43 Window size.144 7.7.44 ZAP field.144 7.7.45 Escape to proprietary.145 7.7.46 Model identifier.145 7.7.47 MMS Generic Header.146 7.7.48 MMS Object Header.146 7.7.49 MMS Extended header.147 7.7.50 Time-Date.147 7.7.51 Ext h/o indicator.148 7.7.52 Authentication Reject Parameter.149 8 B-FORMAT message structures.149 8.1 General.149 8.2 LCE request paging messages.150 8.2.1 Short format message.151 8.2.2 Long format message.153 8.3 CLMS-FIXED messages.155 8.3.1 General message structure.155 8.3.2 Message elements.156 8.3.3 Standard message structures.158 8.3.3.1 General.158 8.3.3.2 Messages using 4-bit characters.158 8.3.3.3 Messages using 8-bit characters.158 9 Call Control (CC) procedures.158 9.1 General.158 9.2 Call Control (CC) states.161 9.2.1 States at PT.161 9.2.1.1 State T-00: "NULL".161 9.2.1.2 State T-19: "RELEASE PENDING".161 SIST EN 300 175-5 V1.7.1:2003

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9.2.1.3 State T-10: "ACTIVE".161 9.2.1.4 State T-01: "CALL INITIATED".161 9.2.1.5 State T-02: "OVERLAP SENDING".161 9.2.1.6 State T-03: "CALL PROCEEDING".161 9.2.1.7 State T-04: "CALL DELIVERED".161 9.2.1.8 State T-06: "CALL PRESENT".161 9.2.1.9 State T-07: "CALL RECEIVED".161 9.2.1.10 State T-08: "CONNECT PENDING".161 9.2.2 States at FT.162 9.2.2.1 State F-00: "NULL".162 9.2.2.2 State F-19: "RELEASE PENDING".162 9.2.2.3 State F-10: "ACTIVE".162 9.2.2.4 State F-01: "CALL-INITIATED".162 9.2.2.5 State F-02: "OVERLAP SENDING".162 9.2.2.6 State F-03: "CALL PROCEEDING".162 9.2.2.7 State F-04: "CALL DELIVERED".162 9.2.2.8 State F-06: "CALL PRESENT".162 9.2.2.9 State F-07: "CALL RECEIVED".162 9.2.3 Optional states (PT and FT).163 9.2.3.1 States T-22 and F-22: "OVERLAP RECEIVING".163 9.2.3.2 States T-23 and F-23: "INCOMING CALL PROCEEDING".163 9.3 Call establishment procedures.163 9.3.1 PT initiated call establishment (outgoing call).163 9.3.1.1 Call request.163 9.3.1.2 Call accept or reject.164 9.3.1.3 Selection of lower layer resources.164 9.3.1.4 Connection of U-plane.165 9.3.1.5 Overlap sending.165 9.3.1.6 Call proceeding.166 9.3.1.7 Call confirmation.166 9.3.1.8 Call connection.167 9.3.1.9 Expiry of timer .167 9.3.2 FT initiated call establishment (incoming call).167 9.3.2.1 Call request.167 9.3.2.2 Call accept or reject.168 9.3.2.3 Selection of lower layer resources.168 9.3.2.4 Connection of U-plane.
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