SIST EN 300 175-5 V1.4.2:2003
(Main)Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 5: Network (NWK) Layer
- Abstract
To update ETS 300 175 Edition 3 based upon change requests received.
- 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
SIST EN 300 175-5 V1.4.2:2003 is the SIST standard for Digital Enhanced Cordless Telecommunications (DECT) Common Interface, Part 5 - Network (NWK) layer. It specifies the NWK procedures, message formats, information elements, and coded values used by DECT fixed and portable parts for call control, supplementary services, connection-oriented and connectionless message services, mobility management, and link control.
What does SIST EN 300 175-5 V1.4.2:2003 specify?
SIST EN 300 175-5 V1.4.2:2003 specifies the DECT NWK layer and how NWK messages and procedures are structured. The document is organized from an overview of the layer and its procedures through detailed message coding, then into call control procedures and state handling.
| Annex | What it covers |
|---|---|
| Annex B | Short-form summary of CC state transitions and procedures |
| Annex D | DECT standard characters used by display and keypad elements |
| Annex G | Segmentation use for variable-length information elements |
| Annex J | Scrolling behaviour types for terminal displays |
What are the key requirements of SIST EN 300 175-5 V1.4.2:2003?
NWK services and procedure families
The standard groups the NWK 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 implementers which part of the NWK handles a task such as setting up a call, moving a user identity, or paging a terminal.
Clause 5 gives the overview of each procedure family, and clause 6 summarizes the message types used by CC, CISS, COMS, CLMS, MM, and LCE. That matters because interoperability depends on sending the right message family for the right service.
Message coding and information elements
Clause 7 defines S-FORMAT message structure, including the Protocol Discrimination (PD) element, Transaction Identifier (TI), message type, and the rules for other information elements. The same clause also defines the coding rules for fixed-length and variable-length information elements, so implementers know how to encode and parse DECT NWK payloads.
The document covers many operational elements such as Portable identity, NWK assigned identity, Network parameter, Progress indicator, Reject reason, Service change info, Terminal capability, Setup capability, Transit delay, Window size, and Segmented info. In practice, these fields are what devices use to identify themselves, announce capabilities, negotiate service changes, and explain call progress or failures.
Interworking and user data transport
Clause 7 also defines interworking-related elements such as IWU-ATTRIBUTES, IWU-PACKET, IWU-TO-IWU, Escape to proprietary, and the MMS headers. These are used when DECT carries external protocol data or non-standardized information inside NWK messages.
The coded fields for identities and payloads include DECT, GSM, and other protocol identifiers, plus support for segmented information. That matters when a DECT system must carry messaging, data, or interworking traffic beyond basic voice.
Paging and broadcast message formats
Clause 8 defines B-FORMAT messages for LCE request paging and CLMS-FIXED messages. The standard gives short and long paging formats, address handling, and the fixed section structure used on broadcast channels.
For paging, the document defines default values for missing attributes and separate layouts for collective or group ringing versus individual addressing. In practice, this determines how a portable part is alerted and what service attributes it should assume when the message is brief.
Call Control behaviour
Clause 9 defines CC states and procedures for both PT and FT, including call establishment, call information, call release, service change, and packet mode procedures. A reliable C-plane DLC link is required before CC procedures can operate, so the link layer must be ready before call handling begins.
The CC state model includes outgoing and incoming call states such as CALL INITIATED, CALL PROCEEDING, CALL DELIVERED, CALL PRESENT, and ACTIVE. This is the logic implementers follow to move a call from setup to answer, release, or modification without breaking interoperability.
What terms does SIST EN 300 175-5 V1.4.2:2003 define?
- NWK - The Network layer in DECT that carries call, mobility, and message services.
- CC - Call Control, the procedure family that establishes, maintains, changes, and releases calls.
- COMS - Connection Oriented Message Service, used for connection-oriented message transfer.
- CLMS - ConnectionLess Message Service, used for fixed or variable length connectionless messages.
- MM - Mobility Management, which handles identity, authentication, location, access rights, and key-related procedures.
- LCE - Link Control Entity, which manages data link establishment, re-establishment, release, suspend/resume, and request paging.
- SS - Supplementary Services, including keypad, feature key management, and functional protocols.
Who uses SIST EN 300 175-5 V1.4.2:2003?
DECT equipment manufacturers use this standard when implementing the NWK layer in fixed parts and portable parts. Telecom engineers and system integrators use it to align call handling, paging, mobility, and interworking behaviour across devices.
Test laboratories and conformity teams use it to verify message coding, state transitions, and procedure handling. Quality managers and buyers use it when specifying DECT feature support for products that need to interoperate with other DECT equipment.
What changed in SIST EN 300 175-5 V1.4.2:2003 from the previous edition?
The scope states that SIST EN 300 175-5 V1.4.2:2003 updates ETS 300 175 Edition 3 based upon change requests received.
Which standards are used with SIST EN 300 175-5 V1.4.2:2003?
| Reference | What it contributes |
|---|---|
| EN 300 175-3 | Lower-layer behaviour referenced for paging, bearer handling, and MAC mapping |
| EN 300 175-6 | Identities and addressing used by portable and network-assigned identity elements |
| EN 300 175-8 | Definitions for TCL, PP adaptive volume control, and PP ambient noise rejection |
| ETS 300 757 | MMS User Data element referenced by the NWK message coding |
| ETS 300 765-1 | RLL access profile referenced in protocol discriminator coding |
| EN 300 403-1 | L3 protocol identification used in IWU and packet-related codings |
| ETS 300 125 | LAP.D / Q.921 coding used in L2 protocol identification |
| ETS 300 370 | GSM IMEISV model identifier coding |
What does the SIST EN 300 175-5 V1.4.2:2003 document contain?
The document contains message summaries, octet-by-octet coding diagrams, and detailed field tables for DECT NWK information elements. It also contains state diagrams for CC on the PT and FT sides, plus an alternative short-form CC summary in annex B.
Clauses 7 and 8 provide the structures for S-FORMAT and B-FORMAT messages, including paging layouts, address fields, length indicators, and data section numbering. The tables in clause 7 cover identity formats, capability indicators, service attributes, timing fields, and interworking payloads.
The procedure clauses show how CC moves through setup, alerting, connect, release, service change, and packet mode handling. That makes the document useful for design, implementation, interoperability testing, and troubleshooting of DECT NWK behaviour.
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Frequently Asked Questions
SIST EN 300 175-5 V1.4.2:2003 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: To update ETS 300 175 Edition 3 based upon change requests received.
To update ETS 300 175 Edition 3 based upon change requests received.
SIST EN 300 175-5 V1.4.2:2003 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 V1.4.2:2003 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 1.4.2SIST EN 300 175-5 V1.4.2:2003en01-december-2003SIST EN 300 175-5 V1.4.2:2003SLOVENSKI
STANDARD
EN 300 175-5 V1.4.2 (1999-06)European Standard (Telecommunications series)Digital Enhanced Cordless Telecommunications (DECT);Common Interface (CI);Part 5: Network (NWK) layerSIST EN 300 175-5 V1.4.2:2003
ETSIETSI EN 300 175-5 V1.4.2 (1999-06)2ReferenceREN/DECT-000129-5 (1md90jdc.PDF)KeywordsDECT, radioETSIPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: +33 4 92 94 42 00
Fax: +33 4 93 65 47 16Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/88Internetsecretariat@etsi.frIndividual copies of this ETSI deliverablecan be downloaded fromhttp://www.etsi.orgIf you find errors in the present document, send yourcomment to: editor@etsi.frCopyright NotificationNo 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.SIST EN 300 175-5 V1.4.2:2003
ETSIETSI EN 300 175-5 V1.4.2 (1999-06)3ContentsIntellectual Property Rights.13Foreword.131Scope.142References.143Definitions and abbreviations.183.1Definitions.183.2Abbreviations.204Overview of the NWK layer.215Overview of procedures.235.1General.235.2Overview of Call Control (CC).235.2.1General.235.2.2Call establishment.235.2.2.1Call setup.235.2.2.2Service negotiation.245.2.3Call connect.245.2.4Call information.245.2.5Service change.245.2.6Call release.255.3Overview of Supplementary Services (SS).255.3.1General.255.3.2Keypad protocol.265.3.3Feature key management protocol.265.3.4Functional protocol.265.4Overview of Connection Oriented Message Service (COMS).265.4.1General.265.4.2COMS establishment.275.4.3Service negotiation.275.4.4COMS connect.275.4.5COMS data transfer.275.4.6COMS suspend and resume.275.4.7COMS release.285.5Overview of ConnectionLess Message Service (CLMS).285.5.1Fixed length message service.285.5.2Variable length message service.285.6Overview of Mobility Management (MM).285.6.1General.285.6.2Identity procedures.295.6.3Authentication procedures.295.6.4Location procedures.295.6.5Access rights procedures.305.6.6Key allocation procedure.305.6.7Parameter retrieval procedure.305.6.8Ciphering related procedure.305.7Overview of Link Control Entity (LCE).315.7.1General.315.7.2Data Link Endpoint Identifier (DLEI).315.7.3Data link establishment.315.7.4Data link re-establishment.325.7.5Data link release.325.7.6Data link suspend and resume.325.7.7Queuing of messages.325.7.8Request paging.33SIST EN 300 175-5 V1.4.2:2003
ETSIETSI EN 300 175-5 V1.4.2 (1999-06)46Message functional definitions.336.1Overview of message structures.336.1.1Messages.336.1.2Information elements.346.2Message summaries.346.2.1Summary of CC messages.346.2.2Summary of CISS messages.356.2.3Summary of COMS messages.356.2.4Summary of CLMS messages.356.2.5Summary of MM messages.366.2.6Summary of LCE messages.366.3S-FORMAT message functional contents.376.3.1S-FORMAT message overview.376.3.2CC-messages.386.3.2.1{CC-SETUP}.386.3.2.2{CC-INFO}.406.3.2.3{CC-SETUP-ACK}.416.3.2.4{CC-CALL-PROC}.426.3.2.5{CC-ALERTING}.436.3.2.6{CC-CONNECT}.446.3.2.7{CC-CONNECT-ACK}.456.3.2.8{CC-RELEASE}.456.3.2.9{CC-RELEASE-COM}.466.3.2.10{CC-SERVICE-CHANGE}.476.3.2.11{CC-SERVICE-ACCEPT}.476.3.2.12{CC-SERVICE-REJECT}.486.3.2.13{CC-NOTIFY}.486.3.2.14{IWU-INFO}.496.3.3SS-messages (call related and call independent).506.3.3.1{FACILITY}.506.3.3.2{HOLD} .506.3.3.3{HOLD-ACK}.516.3.3.4{HOLD-REJECT}.516.3.3.5{RETRIEVE}.526.3.3.6{RETRIEVE-ACK}.526.3.3.7{RETRIEVE-REJECT}.526.3.3.8{CISS-REGISTER}.536.3.3.9{CISS-RELEASE-COM}.536.3.4COMS-messages.546.3.4.1{COMS-SETUP}.546.3.4.2{COMS-INFO}.546.3.4.3{COMS-ACK}.556.3.4.4{COMS-CONNECT}.556.3.4.5{COMS-RELEASE}.556.3.4.6{COMS-RELEASE-COM}.566.3.4.7{COMS-NOTIFY}.566.3.5CLMS-message.576.3.5.1{CLMS-VARIABLE}.576.3.6MM-messages.586.3.6.1{ACCESS-RIGHTS-ACCEPT}.586.3.6.2{ACCESS-RIGHTS-REJECT}.586.3.6.3{ACCESS-RIGHTS-REQUEST}.596.3.6.4{ACCESS-RIGHTS-TERMINATE-ACCEPT}.596.3.6.5{ACCESS-RIGHTS-TERMINATE-REJECT}.606.3.6.6{ACCESS-RIGHTS-TERMINATE-REQUEST}.606.3.6.7{AUTHENTICATION-REJECT}.616.3.6.8{AUTHENTICATION-REPLY}.616.3.6.9{AUTHENTICATION-REQUEST}.626.3.6.10{CIPHER-REJECT}.626.3.6.11{CIPHER-REQUEST}.63SIST EN 300 175-5 V1.4.2:2003
ETSIETSI EN 300 175-5 V1.4.2 (1999-06)56.3.6.12{CIPHER-SUGGEST}.636.3.6.13{DETACH}.646.3.6.14{IDENTITY-REPLY}.646.3.6.15{IDENTITY-REQUEST}.656.3.6.16{KEY-ALLOCATE}.656.3.6.17{LOCATE-ACCEPT}.666.3.6.18{LOCATE-REJECT}.666.3.6.19{LOCATE-REQUEST}.676.3.6.20{MM-INFO-ACCEPT}.676.3.6.21{MM-INFO-REJECT}.686.3.6.22{MM-INFO-REQUEST}.686.3.6.23{MM-INFO-SUGGEST}.696.3.6.24{TEMPORARY-IDENTITY-ASSIGN}.696.3.6.25{TEMPORARY-IDENTITY-ASSIGN-ACK}.706.3.6.26{TEMPORARY-IDENTITY-ASSIGN-REJ}.706.3.7LCE-messages.716.3.7.1{LCE-PAGE-RESPONSE}.716.3.7.2{LCE-PAGE-REJECT}.716.4B-FORMAT message functional contents.726.4.1B-FORMAT message overview.726.4.2{LCE-REQUEST-PAGE}.726.4.3{CLMS-FIXED}.727S-FORMAT message structures.737.1Overview.737.2Protocol Discrimination (PD) element.747.3Transaction Identifier (TI) element.747.4Message type element.757.4.1Messages for CC.767.4.2Messages for SS.767.4.3Messages for COMS.767.4.4Messages for CLMS.777.4.5Messages for MM.777.4.6Messages for LCE.777.5Other information elements.777.5.1Coding rules.777.5.2Extensions of codesets.797.5.3Locking shift procedure.807.5.4Non-locking shift procedure.807.5.5Display and keypad elements.817.5.6Repeated elements.817.6Fixed length information elements.827.6.1Summary.827.6.2Sending complete, delimiter request and use TPUI.827.6.3Repeat indicator.837.6.4Basic service.837.6.5Single display.847.6.6Single keypad.847.6.7Release reason.847.6.8Signal.857.6.9Timer restart.867.6.10Test hook control.877.7Variable length information elements.877.7.1Summary.877.7.2Allocation type.897.7.3Alphanumeric.907.7.4Auth type.917.7.5Call attributes.927.7.6Call identity.947.7.7Called party number.957.7.8Called party subaddress.96SIST EN 300 175-5 V1.4.2:2003
ETSIETSI EN 300 175-5 V1.4.2 (1999-06)67.7.9Calling party number.967.7.10Cipher info.977.7.11Connection attributes.987.7.12Connection identity.1007.7.13Duration.1017.7.14End-to-end compatibility.1027.7.15Facility.1057.7.16Feature activate.1057.7.17Feature indicate.1087.7.18Fixed identity.1107.7.19Identity type.1117.7.20Info type.1127.7.21InterWorking Unit (IWU) attributes.1137.7.22IWU packet.1177.7.23IWU to IWU.1187.7.24Key.1207.7.25Location area.1207.7.26Multi-display.1217.7.27Multi-keypad.1227.7.28NetWorK (NWK) assigned identity.1227.7.29Network parameter.1237.7.30Portable identity.1237.7.31Progress indicator.1277.7.32RAND.1277.7.33Rate parameters.1287.7.34Reject reason.1297.7.35RES.1307.7.36RS.1317.7.37Segmented info.1317.7.38Service change info.1327.7.39Service class.1337.7.40Setup capability.1347.7.41Terminal capability.1357.7.42Transit delay.1387.7.43Window size.1387.7.44ZAP field.1397.7.45Escape to proprietary.1407.7.46Model identifier.1407.7.47MMS Generic Header.1417.7.48MMS Object Header.1417.7.49MMS Extended header.1417.7.50Time-Date.1427.7.51Ext h/o indicator.1438B-FORMAT message structures.1448.1General.1448.2LCE request paging messages.1448.2.1Short format message.1458.2.2Long format message.1478.3CLMS-FIXED messages.1498.3.1General message structure.1498.3.2Message elements.1508.3.3Standard message structures.1518.3.3.1General.1518.3.3.2Messages using 4-bit characters.1518.3.3.3Messages using 8-bit characters.1529Call Control (CC) procedures.1529.1General.1529.2Call Control (CC) states.1559.2.1States at PT.155SIST EN 300 175-5 V1.4.2:2003
ETSIETSI EN 300 175-5 V1.4.2 (1999-06)79.2.1.1State T-00: "NULL".1559.2.1.2State T-19: "RELEASE PENDING".1559.2.1.3State T-10: "ACTIVE".1559.2.1.4State T-01: "CALL INITIATED".1559.2.1.5State T-02: "OVERLAP SENDING".1559.2.1.6State T-03: "CALL PROCEEDING".1559.2.1.7State T-04: "CALL DELIVERED".1559.2.1.8State T-06: "CALL PRESENT".1559.2.1.9State T-07: "CALL RECEIVED".1559.2.1.10State T-08: "CONNECT PENDING".1559.2.2States at FT.1569.2.2.1State F-00: "NULL".1569.2.2.2State F-19: "RELEASE PENDING".1569.2.2.3State F-10: "ACTIVE".1569.2.2.4State F-01: "CALL-INITIATED".1569.2.2.5State F-02: "OVERLAP SENDING".1569.2.2.6State F-03: "CALL PROCEEDING".1569.2.2.7State F-04: "CALL DELIVERED".1569.2.2.8State F-06: "CALL PRESENT".1569.2.2.9State F-07: "CALL RECEIVED".1569.2.3Optional states (PT and FT).1579.2.3.1States T-22 and F-22: "OVERLAP RECEIVING".1579.2.3.2States T-23 and F-23: "INCOMING CALL PROCEEDING".1579.3Call establishment procedures.1579.3.1PT initiated call establishment (outgoing call).1579.3.1.1Call request.1579.3.1.2Call accept or reject.1589.3.1.3Selection of lower layer resources.1589.3.1.4Connection of U-plane.1599.3.1.5Overlap sending.1599.3.1.6Call proceeding.1609.3.1.7Call confirmation.1609.3.1.8Call connection.1619.3.1.9Expiry of timer .1619.3.2FT initiated call establishment (incoming call).1619.3.2.1Call request.1619.3.2.2Call accept or reject.1619.3.2.3Selection of lower layer resources.1629.3.2.4Connection of U-plane.1639.3.2.5Overlap receiving.1639.3.2.6Call proceeding.1639.3.2.7Call confirmation.1639.3.2.8Call connection.1639.3.2.9Sending of <>.1649.3.2.10Expiry of timer .1649.4Call information procedures.1649.5Call release procedures.1649.5.1Normal call release.1649.5.2Abnormal call release.1659.5.3Release collisions.1659.6Service change procedures.
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