SIST EN 300 175-5 V1.7.1:2003
(Main)Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 5: Network (NWK) layer
- Abstract
Maintenance update to include elements for the high speed DECT service.
- Status
- Published
- Publication Date
- 30-Nov-2003
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Dec-2003
- Due Date
- 01-Dec-2003
- Completion Date
- 01-Dec-2003
Digital Enhanced Cordless Telecommunications (DECT) Common Interface (CI), Part 5, specifies the Network (NWK) layer of the DECT protocol stack for the DECT Common Interface. SIST EN 300 175-5 V1.7.1:2003 is a maintenance update that adds elements for the high speed DECT service. It is written for implementers of DECT fixed parts and portable parts who need to build, test, or verify NWK signaling and message coding.
What does SIST EN 300 175-5 V1.7.1:2003 specify?
SIST EN 300 175-5 V1.7.1:2003 specifies the DECT NWK layer, which is layer 3 of the DECT protocol stack. The document covers only the C-plane control plane of the NWK layer, because the U-plane is null at this layer.
The document is organized around an overview of the NWK layer, the main procedure families, the message definitions, the message structures, and the Call Control procedures. Clause 5 introduces the procedure families, clause 6 defines the messages, clause 7 defines S-format information element coding, clause 8 defines B-format structures, and clause 9 begins the Call Control procedures.
| Annex | What it covers |
|---|---|
| Annex D | DECT standard character sets used in information elements such as ALPHANUMERIC |
| Annex I | Distributed Communications coding used when the protocol discriminator selects that format |
What are the key requirements of SIST EN 300 175-5 V1.7.1:2003?
SIST EN 300 175-5 V1.7.1:2003 defines how NWK signaling is organized and how the protocol elements are coded so that different DECT implementations can exchange calls, services, and mobility messages consistently.
Core protocol families
Clause 5 groups NWK procedures into Call Control (CC), Supplementary Services (SS), Connection Oriented Message Service (COMS), ConnectionLess Message Service (CLMS), Mobility Management (MM), and Link Control Entity (LCE). In practice, this tells an implementer which signaling functions the NWK layer must support.
Message and coding structure
Clauses 6 and 7 define the functional content of S-format messages and the coding of their fields, including Protocol Discrimination (PD), Transaction Identifier (TI), and message type. This matters because receivers rely on these fields to identify the message purpose and the call or service instance it belongs to.
Information element rules
Clause 7 sets the coding rules for fixed and variable length information elements, including extension bits, repeated elements, and the order of appearance of variable elements. This is what lets equipment parse messages reliably and detect optional data without scanning the whole message.
Service, identity, and mobility data
Clause 7 includes information elements for call attributes, calling and called party numbers, identities, authentication data, ciphering, location area, and network parameters. In practice, these elements carry the service profile, numbering, access rights, and security data needed for registration, authentication, and call handling.
Call and bearer control
Clause 7 also defines elements such as CONNECTION-ATTRIBUTES, CONNECTION-IDENTITY, SERVICE-CHANGE-INFO, RATE-PARAMETERS, WINDOW-SIZE, and ZAP-FIELD. These control the bearer characteristics, service changes, and link behavior that a system must negotiate during a call.
Paging and fixed-format messaging
Clause 8 defines B-format request paging messages and CLMS-FIXED messages. This is important for portable part wake-up, collective or group ringing, and compact message transfer where a fixed section structure is used.
Call control procedures
Clause 9 starts the CC procedure definitions and CC states for the portable part. This gives the signaling behavior for call setup, connect, information transfer, release, and state handling.
What terms does SIST EN 300 175-5 V1.7.1:2003 define?
- Network (NWK) layer - The DECT layer that carries signaling above the DLC/MAC layers and below the higher service functions.
- C-plane - The control plane of the NWK layer, used for signaling and internal control information.
- Call Control (CC) - The set of procedures and messages used to set up, manage, and release calls.
- Supplementary Services (SS) - Signaling used for features such as hold, retrieve, and facility-based service operations.
- Connection Oriented Message Service (COMS) - A message service that uses connection-oriented procedures for data exchange.
- ConnectionLess Message Service (CLMS) - A message service for connectionless data transfer, including fixed and variable message forms.
- Mobility Management (MM) - The procedures for identity, authentication, location, access rights, key allocation, and ciphering-related functions.
- Link Control Entity (LCE) - The procedures that manage data link establishment, re-establishment, release, suspend, resume, and paging support.
Who uses SIST EN 300 175-5 V1.7.1:2003?
SIST EN 300 175-5 V1.7.1:2003 is used by DECT equipment designers, protocol stack developers, interoperability test labs, and certification teams. It is also relevant to quality managers and buyers who need to confirm that a DECT product supports the expected NWK signaling, paging, identities, and service negotiation.
In practice, these users apply it when implementing fixed parts (FP) and portable parts (PT), checking message coding, validating mobility procedures, and confirming that service profiles exchange the right information elements.
What changed in SIST EN 300 175-5 V1.7.1:2003 from the previous edition?
This edition is a maintenance update that adds elements for the high speed DECT service.
Which standards are used with SIST EN 300 175-5 V1.7.1:2003?
- EN 300 175-3 - Provides MAC layer details used for bearer behavior, modulation, and packet lifetime references.
- EN 300 175-4 - Provides data link and U-plane related details referenced for routing, bearer use, and advanced connection handling.
- EN 300 175-6 - Defines identities and addressing that are used for IPUI, IPEI, TPUI, PARK, and related identity coding.
- EN 300 175-8 - Provides definitions referenced for echo control and audio-related terminal capability items.
- EN 300 196-1 - Provides supplementary service component coding used with FACILITY messages.
- EN 300 403-1 - Provides the variable-length information element principles used in NWK coding.
- EN 300 757 - Provides the LRMS service referenced in profile and capability coding.
- EN 300 765-1 and EN 300 765-2 - Provide RAP profile references used in capability and application indicators.
- EN 300 700 - Provides the WRS reference used in capability coding.
- ITU-T X.200 and ITU-T X.210 - Provide the layered model principles used to describe the DECT protocol stack.
What does the SIST EN 300 175-5 V1.7.1:2003 document contain?
The document contains message summaries, message type coding tables, and octet-by-octet structures for DECT NWK messages. It also contains detailed definitions for information elements such as ALPHANUMERIC, CALL-ATTRIBUTES, CALLING-PARTY-NUMBER, CONNECTION-ATTRIBUTES, END-TO-END-COMPATIBILITY, FACILITY, FEATURE-ACTIVATE, IWU-ATTRIBUTES, NWK-ASSIGNED-IDENTITY, PORTABLE-IDENTITY, PROGRESS-INDICATOR, RATE-PARAMETERS, REJECT-REASON, SERVICE-CHANGE-INFO, TERMINAL-CAPABILITY, and WINDOW-SIZE.
It further provides paging formats, CLMS-FIXED framing, and the coding rules for fixed and variable length elements. The tables and figures are used for implementation, interoperability testing, and protocol verification rather than for product performance claims.
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Frequently Asked Questions
SIST EN 300 175-5 V1.7.1:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 5: Network (NWK) layer". This standard covers: Maintenance update to include elements for the high speed DECT service.
Maintenance update to include elements for the high speed DECT service.
SIST EN 300 175-5 V1.7.1:2003 is classified under the following ICS (International Classification for Standards) categories: 33.070.30 - Digital Enhanced Cordless Telecommunications (DECT); 35.100.30 - Network layer. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 175-5 V1.7.1:2003 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)
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
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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
ETSI ETSI EN 300 175-5 V1.7.1 (2003-07) 7
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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