SIST ETS 300 370:1999

SLOVENSKI STANDARD
3SIST ETS 300 370:1999
01-julij-1999
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Digital Enhanced Cordless Telecommunications (DECT); Global System for Mobile
communications (GSM); DECT/GSM Interworking Profile (IWP); Access and mapping
(protocol/procedure description for 3,1 kHz speech service)
Ta slovenski standard je istoveten z: ETS 300 370 E2
ICS:
33.020 Telekomunikacije na splošno Telecommunications in
general
33.070.30 'LJLWDOQHL]EROMãDQH Digital Enhanced Cordless
EUH]YUYLþQHWHOHNRPXQLNDFLMH Telecommunications (DECT)
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3SIST ETS 300 370:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN ETS 300 370
TELECOMMUNICATION February 1998
STANDARD Second Edition
Source: DECT Reference: RE/DECT–010073
ICS: 33.020
Key words: DECT, GSM
Digital Enhanced Cordless Telecommunications (DECT);
Global System for Mobile communications (GSM);
DECT/GSM Interworking Profile (IWP);
Access and mapping
(protocol/procedure description for 3,1 kHz speech service)
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
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariat@etsi.fr
Tel.: +33 4 92 94 42 00 - Fax: +33 4 93 65 47 16
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 1998. All rights reserved.

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ETS 300 370: February 1998
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 Editing and Committee Support Dept." at the address shown on the title page.

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ETS 300 370: February 1998
Contents
Foreword .9
Introduction.9
1 Scope .11
2 Normative references.12
3 Definitions, abbreviations and symbols.14
3.1 DECT definitions.14
3.2 Abbreviations .16
3.3 GSM abbreviations and definitions .17
3.4 Symbols for status columns.18
4 General.18
5 Interworking requirements.19
5.1 General .19
5.2 Reference configurations.19
5.2.1 FP functional attachment to the GSM PLMN .19
5.3 General interworking model for FP GSM PLMN attachment.20
5.4 Interworking context.20
5.4.1 General.20
5.4.2 Basic interworking rules .21
5.4.3 Location area mapping.23
5.4.4 Interpretation of broadcast attributes.23
6 Interworking mappings, FP attached to the GSM PLMN .24
6.1 FP C–Plane IWU procedures .24
6.1.1 Call handling IWU procedures .24
6.1.1.1 Normal outgoing call.24
6.1.1.2 Emergency call .27
6.1.1.3 Incoming call.27
6.1.1.4 Normal call release initiated by the PP .29
6.1.1.5 Normal call release initiated by the GSM PLMN.30
6.1.1.6 Abnormal call release initiated by the PP .31
6.1.1.7 Abnormal call release initiated by the GSM network .32
6.1.1.8 Exceptional cases.33
6.1.1.9 Other.33
6.1.2 Other IWU procedures .33
6.1.2.1 Authentication procedure.34
6.1.2.2 Identity procedure .35
6.1.2.3 Location registration related procedures .36
6.1.2.4 Detach procedure .40
6.1.2.5 Temporary identity assignment procedures .41
6.1.2.6 Ciphering procedure .42
6.1.2.6.1 Ciphering rejection.43
6.1.2.7 CM service procedure .43
6.1.2.8 CM service procedure abnormal cases.46
6.1.2.9 External handover procedure .46
6.1.2.9.1 General description.46
6.1.2.9.2 Handover candidate procedure .47
6.1.2.9.3 Handover required indication.47
6.1.2.9.4 Handover resource allocation .48
6.1.2.9.5 Handover execution by FP.48
6.1.2.9.6 Handover request to FP–2.48
6.1.2.9.7 Handover confirm by FP–2 .48

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ETS 300 370: February 1998
6.1.2.9.8 Ciphering procedure. 48
6.1.2.9.9 Handover completion . 49
6.1.2.9.10 Sequence number handling . 50
6.1.2.9.11 Handover reject. 50
6.1.2.9.11.1 Handover reject by PP . 50
6.1.2.9.11.2 Handover reject by FP–1. 50
6.1.2.9.11.3 Handover reject by FP–2. 50
6.1.2.9.11.4 Handover reject by MSC . 50
6.1.2.9.11.5 Support of external handover due to
O&M activities . 51
6.1.2.9.11.6 Handling of transaction identifiers
during and after external handover . 51
6.1.3 Paging related IWU procedure . 51
6.1.4 Other specific IWU procedures . 52
6.1.4.1 Equipment identity IWU procedures . 52
6.1.4.2 Miscellaneous procedures . 52
6.1.4.2.1 Notification of progress and
interworking. 52
6.1.4.2.2 User notification . 53
6.1.4.3 Handling of Dual Tone Multi–Frequency (DTMF) . 53
6.1.5 Exception handling . 55
6.1.5.1 Error handling. 55
6.1.5.2 Timers . 55
6.1.5.2.1 Call handling IWU procedures . 55
6.1.5.2.2 Other IWU procedures and paging
procedures . 55
6.1.6 Message mappings. 56
6.1.6.1 GSM to DECT . 56
6.1.6.1.1 AUTHENTICATION REQUEST–
{AUTHENTICATION–REQUEST}. 57
6.1.6.1.2 AUTHENTICATION REJECT– {MM–
INFO–SUGGEST}. 57
6.1.6.1.3 IDENTITY–REQUEST – {IDENTITY–
REQUEST}. 57
6.1.6.1.4 TMSI REALLOCATION COMMAND –
{TEMPORARY–IDENTITY–ASSIGN}. 58
6.1.6.1.5 CIPHERING MODE COMMAND –
{CIPHER–REQUEST}. 58
6.1.6.1.6 LOCATION UPDATING ACCEPT –
{LOCATE–ACCEPT}. 59
6.1.6.1.7 LOCATION UPDATING REJECT –
{LOCATE–REJECT} . 59
6.1.6.1.8 ALERTING – {CC–ALERTING}. 59
6.1.6.1.9 CALL–PROC – {CC–CALL–PROC}. 60
6.1.6.1.10 CONNECT – {CC–CONNECT}. 60
6.1.6.1.11 SETUP – {CC–SETUP}. 60
6.1.6.1.12 DISCONNECT – {CC–RELEASE} . 61
6.1.6.1.13 RELEASE – {CC–RELEASE–COM} . 61
6.1.6.1.14 RELEASE COMPLETE – {CC–
RELEASE–COM} . 61
6.1.6.1.15 CM SERVICE REJECT – {CC–
RELEASE–COM} . 62
6.1.6.1.16 ABORT – {CC–RELEASE–COM} . 62
6.1.6.1.17 CONNECT–ACK to {CC–CONNECT–
ACK}. 62
6.1.6.1.18 PROGRESS – {CC–INFO}. 62
6.1.6.1.19 PROGRESS – {CC–NOTIFY}. 63
6.1.6.1.20 DISCONNECT – {CC–INFO} . 63
6.1.6.1.21 RELEASE – {CC–RELEASE}. 64
6.1.6.1.22 START–DTMF–ACK – {CC–INFO}. 64
6.1.6.1.23 START–DTMF–REJECT – {CC–
INFO} . 64
6.1.6.1.24 STOP–DTMF–ACK – {CC–INFO}. 64

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ETS 300 370: February 1998
6.1.6.1.25 CM SERVICE ACCEPT – {CC–
SETUP–ACK} .65
6.1.6.1.26 Handover Command – {MM–INFO–
ACCEPT} .65
6.1.6.1.27 Clear Command – {CC–RELEASE} .65
6.1.6.1.28 Handover Required Reject – {MM–
INFO–REJECT}.65
6.1.6.1.29 Handover Command – {MM–INFO–
SUGGEST} .66
6.1.6.1.30 NOTIFY – {CC–INFO} .66
6.1.6.2 DECT to GSM.67
6.1.6.2.1 {LOCATE–REQUEST} – LOCATION–
UPDATING–REQUEST.68
6.1.6.2.2 {LCE–PAGE–RESPONSE} – PAGING
RESPONSE.69
6.1.6.2.3 {AUTHENTICATION–REPLY} –
AUTHENTICATION RESPONSE .69
6.1.6.2.4 {DETACH} – IMSI DETACH
INDICATION .70
6.1.6.2.5 {TEMPORARY–IDENTITY–ASSIGN–
ACK} – TMSI REALLOCATION
COMPLETE .70
6.1.6.2.6 {CC–SETUP} – CM SERVICE
REQUEST .70
6.1.6.2.7 {IDENTITY–REPLY} – IDENTITY
RESPONSE.71
6.1.6.2.8 {CC–ALERTING} – ALERTING .71
6.1.6.2.9 {CC–CONNECT} – CONNECT .72
6.1.6.2.10 {CC–INFO} (F–02) – SETUP.72
6.1.6.2.11 {CC–RELEASE} – DISCONNECT.73
6.1.6.2.12 {CC–RELEASE} – RELEASE .73
6.1.6.2.13 CC–RELEASE–COM – RELEASE .73
6.1.6.2.14 {CC–RELEASE–COM} – RELEASE–
COMPLETE .74
6.1.6.2.15 {CC–SETUP} – SETUP .75
6.1.6.2.16 {CC–SETUP} – EMERGENCY–
SETUP.76
6.1.6.2.17 {CC–RELEASE} – CM SERVICE
ABORT .76
6.1.6.2.18 {CC–INFO} – START–DTMF.77
6.1.6.2.19 {CC–INFO} – STOP–DTMF.77
6.1.6.2.20 {MM–INFO–REQUEST} – Handover
required.77
6.1.6.2.21 {CC–SETUP} – Handover detect.78
6.1.6.2.22 {CC–CONNECT–ACK} – handover
complete .78
6.1.6.2.23 {MM–INFO–REQUEST} – handover
failure .78
6.1.7 Information element mappings.79
6.1.7.1 GSM to DECT.79
6.1.7.1.1 Mobile identity – NWK assigned
identity.79
6.1.7.1.2 Authentication parameter RAND –
RAND.79
6.1.7.1.3 Cipher key sequence number – auth
type .80
6.1.7.1.4 Location area identification – location
area.80
6.1.7.1.5 Identity type – identity type.81
6.1.7.1.6 Reject cause – reject reason .81
6.1.7.1.7 Bearer capabilities 1 – basic service .81
6.1.7.1.8 Progress indicator – progress
indicator .81

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ETS 300 370: February 1998
6.1.7.1.9 Cause – release reason . 82
6.1.7.1.10 Reject cause – release reason. 82
6.1.7.1.11 Signal – signal. 82
6.1.7.1.12 Keypad facility – multi display. 82
6.1.7.1.13 Cause – multi display . 83
6.1.7.1.14 Layer 3 information – fixed identity. 83
6.1.7.1.15 Layer 3 information – network
parameter. 84
6.1.7.1.16 Notification indicator – multi display . 84
6.1.7.2 DECT to GSM . 85
6.1.7.2.1 Portable identity – mobile identity. 85
6.1.7.2.2 Network assigned identity– mobile
identity . 85
6.1.7.2.3 Location area – location area
identification . 85
6.1.7.2.4 Cipher info – cipher key sequence
number . 86
6.1.7.2.5 RES – Auth. parameter SRES . 86
6.1.7.2.6 Portable identity– mobile identity. 86
6.1.7.2.7 Basic service – CM service type . 87
6.1.7.2.8 Basic service – bearer capabilities. 87
6.1.7.2.9 Called–party–number – called–party–
number . 87
6.1.7.2.10 Multi keypad – called–party–number. 88
6.1.7.2.11 Multi keypad – keypad facility (F–10) . 88
6.1.7.2.12 Release reason – cause . 88
6.1.7.2.13 Info type – cause. 89
6.1.7.2.14 Model identifier– Mobile identity . 89
6.1.8 Fields in information element coding . 89
6.1.8.1 GSM to DECT . 89
6.1.8.1.1 Protocol discriminator – protocol
discriminator. 89
6.1.8.1.2 Transaction identifier – transaction
identifier. 90
6.1.8.1.3 Message type – message type. 90
6.1.8.1.4 Id for info element (IEI) – id for info
element . 90
6.1.8.1.5 Length of contents – length of
contents. 90
6.1.8.1.6 Type, (Mobile identity, NWK assigned
identity). 90
6.1.8.1.7 Identity value, (mobile identity, NWK
assigned identity) . 91
6.1.8.1.8 Y/N bit (encryption information –
cipher info) . 91
6.1.8.1.9 RAND field (RAND – RAND). 91
6.1.8.1.10 Cipher key number (key sequence –
cipher key number) . 91
6.1.8.1.11 Extended location information
(location area identification – location
area). 92
6.1.8.1.12 Identity group (identity type – identity
type) . 92
6.1.8.1.13 Type (identity type – identity type) . 92
6.1.8.1.14 Type, (mobile identity, portable
identity). 93
6.1.8.1.15 Portable user type, (mobile identity,
portable identity). 93
6.1.8.1.16 Identity value, (mobile identity –
portable identity). 93
6.1.8.1.17 Reject cause value – reject reason
code. 93
6.1.8.1.18 Coding–standard – coding–standard . 94

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ETS 300 370: February 1998
6.1.8.1.19 Information transfer capability – basic
service.94
6.1.8.1.20 Location – location.94
6.1.8.1.21 Progress–description – progress–
description.95
6.1.8.1.22 Cause–value – release–reason–code .95
6.1.8.1.23 Signal value – signal value .95
6.1.8.1.24 Skip indicator – transaction identifier .96
6.1.8.1.25 Reject cause value – release reason
code .96
6.1.8.2 DECT to GSM.96
6.1.8.2.1 Protocol discriminator –protocol
discriminator .96
6.1.8.2.2 Transaction identifier – transaction
identifier .96
6.1.8.2.3 Message type – message type .96
6.1.8.2.4 Id for info element – id for info
element (IEI) .96
6.1.8.2.5 Length of contents – length of
contents .96
6.1.8.2.6 Length of identity value (portable
identity – mobile identity).97
6.1.8.2.7 Type, (portable identity – mobile
identity) .97
6.1.8.2.8 Portable user type, (portable identity –
mobile identity).97
6.1.8.2.9 Identity value, (portable identity –
mobile identity).97
6.1.8.2.10 Type, (NWK assigned identity –
mobile identity).97
6.1.8.2.11 Identity value, (NWK assigned identity
– mobile identity).98
6.1.8.2.12 Extended location information,
(location area – location area
identification).98
6.1.8.2.13 Cipher key number, (cipher info –
cipher key sequence number) .98
6.1.8.2.14 RES field (RES – auth. parameter
SRES).98
6.1.8.2.15 Type, (portable identity – mobile
identity) .99
6.1.8.2.16 Call class, (basic service – CM service
type) .99
6.1.8.2.17 Basic service – information transfer
capability .99
6.1.8.2.18 Number–type – type–of–number .99
6.1.8.2.19 Numbering–plan identification –
numbering–plan identification .100
6.1.8.2.20 Release–reason–code – cause–value100
6.1.8.2.21 Transaction identifier – skip indicator .100
6.1.8.2.22 Type, (MANIC–MODIC – mobile
identity) .101
6.2 FP U–Plane IWU procedures .101
6.2.1 Service activation .101
6.3 PP C–Plane IWU mappings.102
6.3.1 Call handling IWU procedures .102
6.3.1.1 Call establishment procedure .102
6.3.1.1.1 Outgoing call.102
6.3.1.1.2 Emergency call .102
6.3.1.1.3 Incoming call.102
6.3.1.2 Call release/reject procedures.102
6.3.2 Other IWU procedures .103
6.3.2.1 Authentication procedure.103

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ETS 300 370: February 1998
6.3.2.2 Identity procedure . 104
6.3.2.3 Location registration procedure . 104
6.3.2.3.1 General. 104
6.3.2.3.2 Normal location updating . 105
6.3.2.3.3 Periodic location updating . 105
6.3.2.3.4 IMSI attach procedure. 105
6.3.2.3.5 Generic location updating procedure . 106
6.3.2.3.5.1 Location updating initiation by the PP 106
6.3.2.3.5.2 Attempt counter. 108
6.3.2.3.5.3 Location updating not accepted by the
network. 108
6.3.2.4 Detach procedure . 109
6.3.2.5 Temporary identity assignment procedure. 109
6.3.2.6 Ciphering related procedure. 110
6.3.2.7 External handover procedure. 110
6.3.2.7.1 Handover candidate procedure. 110
6.3.2.7.2 Handover reference retrieval. 111
6.3.2.7.3 Handover execution by PP. 111
6.3.2.7.4 Handover request. 111
6.3.2.7.5 Handover request to FP–2 . 111
6.3.2.7.6 Handover accept by PP. 111
6.3.2.7.7 Ciphering procedure. 112
6.3.2.7.8 Release of old connection. 112
6.3.2.7.9 Handover reject. 112
6.3.2.7.10 Support of external handover due to
O&M activities . 112
6.3.2.7.11 Handling of transaction identifiers
during and after external handover . 112
6.3.3 Paging related IWU procedure . 114
6.3.4 Message mappings. 114
6.3.5 Information element mappings . 115
6.3.6 Stopping of CC timers. 115
7 Interworking connection type definitions. 115
Annex A (normative): Derivation of the DECT ciphering key CK. 117
A.1 Introduction. 117
A.2 Algorithm to calculate the DECT CK from Kc. 117
Annex B (normative): Deletion of the GSM Kc, CKSN, TMSI and LAI . 118
Annex C (normative): Mapping of equipment identities . 119
Annex D (informative): Physical attachment models for the FP . 120
D.1 Introduction. 120
D.2 Physical attachment to the MSC. 120
D.3 Physical attachment to the BSC . 120
D.4 Physical attachment to the BTS. 120
Annex E (informative): Bibliography . 121
History. 122

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ETS 300 370: February 1998
Foreword
This second edition European Telecommunication Standard (ETS) has been produced by the Digital
Enhanced Cordless Telecommunications (DECT) Project of the European Telecommunications
Standards Institute (ETSI).
Transposition dates
Date of adoption of this ETS: 23 January 1998
Date of latest announcement of this ETS (doa): 31 May 1998
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 30 November 1998
Date of withdrawal of any conflicting National Standard (dow): 30 November 1998
Introduction
This ETS is a part of a set of standards for the Digital Enhanced Cordless Telecommunications / Global
System for Mobile communications (DECT/GSM) Interworking Profile (IWP) concept that includes:
- general description of service requirements, functional capabilities and information flows,
ETS 300 466 [12];
- access and mapping (protocol/procedure description for 3,1 kHz speech service), (this ETS);
- GSM Phase 2 supplementary services implementation, ETS 300 703 [21];
- GSM Mobile Switching Centre (MSC) – DECT Fixed Part (FP), Fixed Interconnection,
ETS 300 499 [13];
- implementation of bearer services, ETS 300 756 [22];
- implementation of short message services, point to point and cell broadcast, ETS 300 764 [23];
- implementation of facsimile group 3, (ETS 300 792 [24]).
This ETS is based on DECT Common Interface (CI) specification ETS 300 175, parts 1 to 8 [1] to [8] to
enable DECT terminals to interwork in the public and private environment with DECT systems which are
connected to a GSM core infrastructure.
In addition, this ETS is based on the DECT Generic Access Profile (GAP), EN 300 444 [10] to enable the
same DECT/GSM terminal to interwork with a DECT FP complying to the GAP requirements, irrespective
of whether this FP provides residential, business or public access services. General attachment
requirements and speech attachment requirements are based on TBR 6 [26] and TBR 10 [27].
This ETS utilizes, in addition to the GAP only related features and procedures, the following:
- GSM authentication;
- derivation of the DECT ciphering key from the respective GSM cipher key;
- the GSM International Mobile Subscriber Identity (IMSI) and Temporary Mobile Subscriber Identity
(TMSI);
- the GSM Location Area Identity (LAI);
- subscription management by use of Subscriber Identity Module (SIM); and
- adding/deleting a Public Land Mobile Network (PLMN) in the SIM forbidden PLMN list.
This ETS defines a general purpose, but strict, mobility profile in terms of features, procedures, data
structures, information elements and fields within the information elements at the DECT air interface in
order to achieve full inter–operability between equipment, i.e. DECT systems and terminals, which fulfil the
requirements of this ETS. This ETS also fulfils the minimum requirements of the GAP enabling backwards
compatibility with the respective equipment.
Information on DECT access to the GSM PLMN may be found in ETR 159 [33]. Further details on the
DECT system may be found in ETR 015 [29], ETR 043 [30], and ETR 056 [31], and in ETS 300 176 [9].

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ETS 300 370: February 1998
Blank page
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ETS 300 370: February 1998
1 Scope
This European Telecommunication Standard (ETS) specifies the Digital Enhanced Cordless
Telecommunications (DECT) access protocols and Fixed Part (FP) and Portable Part (PP)
interworking/mappings necessary to ensure that the Global System for Mobile communications (GSM)
basic voice telephony service can be provided over DECT. To enable DECT terminals to interwork with
DECT systems which are connected to the GSM infrastructure, from the DECT side this ETS is based on
EN 300 444 [10] and on the DECT Common Interface specification ETS 300 175 parts 1 to 8 [1] to [8] (for
the cases not covered by Generic Access Profile (GAP)), from GSM side this ETS assumes interworking
with GSM Public Land Mobile Network (PLMN) phase 2.
An air–interface profile is specified for a particular set of GSM services so that inter–operability of DECT
equipment for these services can be achieved. Interworking functions/mappings are specified for Mobile
Switching Centre (MSC) attachment for the DECT FP as the FP is using the A–interface towards the GSM
MSC in the respect that the FP emulates a GSM Base Station Controller (BSC) with regards to the GSM
messages which are relevant to this ETS. Interworking functions/mappings for the PP are specified for
MSC environment.
The provision of the GSM Subscriber Identity Module (SIM) and DECT Authentication Module (DAM) with
the GSM Application (GA) within the DECT portable are also considered.
This ETS covers a subset of ETS 300 557 [18] (GSM 04.08) and ETS 300 590 [20] (GSM 08.08)
procedures as far as mapping is concerned and as far as this is required for support of 3,1 kHz speech
service.
GSM functions of ETS 300 590 [20] (GSM 08.08) which, in a DECT/GSM context, are relevant at the
A-interface only, are out of the scope of this ETS, as well as interfaces to non GSM networks.
Specific interworking procedures/mappings for the support of supplementary services, data services, short
message services and other GSM services are out of the scope of this ETS. Basic support for service
initiation/invocation is however supported by this ETS.
A PP conforming to this ETS should be capable of distinguishing a FP conforming to this ETS from a FP
conforming to the GAP and to access and react upon it accordingly.

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ETS 300 370: February 1998
2 Normative references
This ETS incorporates, by dated or 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] ETS 300 175-1: "Digital Enhanced Cordless Telecommunications (DECT);
Common Interface (CI); Part 1: Overview".
[2] ETS 300 175-2: "Digital Enhanced Cordless Telecommunications (DECT);
Common Interface (CI); Part 2: Physical layer (PHL)".
[3] ETS 300 175-3: "Digital Enhanced Cordless Telecommunications (DECT);
Common Interface (CI); Part 3: Medium Access Control (MAC) layer".
[4] ETS 300 175-4: "Digital Enhanced Cordless Telecommunications (DECT);
Common Interface (CI); Part 4: Data Link Control (DLC) layer".
[5] ETS 300 175-5: "Digital Enhanced Cordless Telecommunications (DECT);
Common Interface (CI); Part 5: Network (NWK) layer".
[6] ETS 300 175-6: "Digital Enhanced Cordless Telecommunications (DECT);
Common Interface (CI); Part 6: Identities and addressing".
[7] ETS 300 175-7: "Digital Enhanced Cordless Telecommunications (DECT);
Common Interface (CI); Part 7: Security features".
[8] ETS 300 175-8: "Digital Enhanced Cordless Telecommunications (DECT);
Common Interface (CI); Part 8: Speech coding and transmission".
[9] ETS 300 176: "Digital Enhanced Cordless Telecommunications (DECT);
Approval test specification".
[10] EN 300 444: "Digital European Cordless Telecommunications (DECT); Generic
Access Profile (GAP)".
[11] ETS 300 331: "Digital European Cordless Telecommunications (DECT); DECT
Authentication Module (DAM)".
[12] ETS 300 466: "Digital European Cordless Telecommunications/Global System
for Mobile Communications (DECT/GSM) interworking profile; General
description of service requirements; Functional capabilities and information
flows".
[13] ETS 300 499: "Digital Enhanced Cordless Telecommunications / Global System
for Mobile Communications (DECT/GSM) interworking profile; Mobile services
Switching Centre (MSC) - Fixed Part (FP) interconnection".
[14] ETS 300 508: "European digital cellular telecommunications system (Phase 2);
International Mobile station Equipment Identities (IMEI) (GSM 02.16)".
[15] ETS 300 522: "Digital cellular telecommunications system (Phase 2); Network
architecture (GSM 03.02)".
[16] ETS 300 523: "European digital cellular telecommunications system (Phase 2);
Numbering, addressing and identification (GSM 03.03)".
[17] ETS 300 551: "European digital cellular telecommunications system (Phase 2);
GSM Public Land Mobile Network (PLMN) access reference configuration
(GSM 04.02)".
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ETS 300 370: February 1998
[18] ETS 300 557: "Digital cellular telecommunications system (Phase 2); Mobile radio
interface layer 3 specification (GSM 04.08)".
[19] ETS 300 580–1: "European digital cellular telecommunications system
(Phase 2); Full rate speech processing functions (GSM 06.01)".
[20] ETS 300 590: "Digital cellular telecommunications system (Phase 2); Mobile -
services Switching Centre - Base Station System (MSC - BSS) interface; Layer
3 specification (GSM 08.08)".
Digital Enhanced Cordless Telecommunications / Global System
[21] ETS 300 703: "
for Mobile communications (DECT/GSM) Inter-Working Profile (IWP); GSM
phase 2 supplementary services implementation
".
[22] ETS 300 756: "Digital Enhanced Cordless Telecommunications / Global System
for Mobile communications (DECT/GSM) interworking profile; Implementation of
bearer services".
[23] ETS 300 764: "Digital Enhanced Cordless Telecommunications / Global System
for Mobile communications (DECT/GSM) Interworking Profile (IWP);
Implementation of short message service, point-to-point and cell broadcast".
[24] ETS 300 792: "Digital Enhanced Cordless Telecommunications / Global System
for Mobile communications (DECT/GSM); DECT/GSM interworking profile;
Implementation of facsimile group 3".
[25] ISO/IEC 9646–6: "Information technology – Open Systems Interconnection –
Conformance testing methodology and framework – Part 6: Protocol profile test
specification".
[26] TBR 6: "Digital Enhanced Cordless Telecommunications (DECT); General
terminal attachment requirements".
[27] TBR 10: "Digital Enhanced Cordless Telecommunications (DECT); General
terminal attachment requirements; Telephony applications".
[28] 91/263/EEC: "Council Directive of 29 April 1991 on the approximation of the
laws of the Member states concerning telecommunications terminal equipment,
including the mutual recognition of their conformity". (Terminal Directive).
[29] ETR 015: "Digital European Cordless Telecommunications (DECT); Reference
document".
[30] ETR 043: "Digital European Cordless Telecommunications (DECT); Common
interface; Services and facilities requirements specification".
[31] ETR 056: "Digital European Cordless Telecommunications (DECT); System
description document".
[32] ETR 100: "European digital cellular telecommunications system (Phase 2);
Abbreviations and acronyms (GSM 01.04)".
[33] ETR 159: "Digital European Cordless Telecommunications (DECT); Wide area
mobility using the Global System for Mobile communications (GSM)".
[34] ETR 206: "Public Switched Telephone Network (PSTN); Multifrequency
signalling system to be used for push-button telephones [CEPT
Recommendation T/CS 46-02 E (1985)]".

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ETS 300 370: February 1998
3 Definitions, abbreviations and symbols
3.1 DECT definitions
For the purposes of this ETS, the following DECT definitions apply:
attach: The process whereby a PP within the coverage area of a FP to which it has access rights, notifies
this FP that it is operative. The reverse process is detach, which reports the PP as inoperative.
NOTE 1: An operative PP is assumed to be ready to receive calls.
authentication: The process whereby a DECT subscriber is positively verified to be a legitimate user of a
particular FP.
NOTE 2: Authentication is generally performed at call set–up, but may also be done at any other
time (e.g. during a call).
bearer service: A type of telecommunication service that provides a defined capability for the
transmission of signals between user–network interfaces.
NOTE 3: The DECT user–network interface corresponds to the top of the network layer (layer
3).
C–Plane: The control plane of the DECT protocol stacks, which contains all of the internal DECT protocol
control, but may also include some external user information.
NOTE 4: The C–Plane stack always contains protocol entities up to and including the network
layer.
call: All of the Network (NWK) layer processes involved in one network layer peer–to–peer association.
NOTE 5: Call may sometimes be used to refer to processes of all layers, since lower layer
processes are implicitly required.
DECT Network (DNW): A network that uses the DECT air interface to interconnect a local network to one
or more portable applications. The logical boundaries of the DECT network are defined to be at the top of
the DECT network layer.
NOTE 6: A DNW is a logical grouping that contains one or more fixed radio termination plus
their associated portable radio termination. The boundaries of the DECT network are
not physical boundaries.
Fixed Part (DECT Fixed Part) (FP): A physical grouping that contains all of the elements in the DECT
network between the local network and the DECT air interface.
NOTE 7: A DECT FP contains the logical elements of at least one fixed radio termination, plus
additional implementation specific elements.
fixed part GSM PLMN Attachment (DECT fixed part attached to a GSM MSC): A definition of a
functional environment where a DECT system (FP) is attached to an GSM MSC. The MSC in this case
refers to a functional entity providing the required Mobility Management (MM) and Call Control (CC)
functionality defined in this ETS in order to communicate with the FP.
Fixed radio Termination (FT): A logical group of functions that contains all of the DECT processes and
procedures on the fixed side of the DECT air interface.
NOTE 8: A FT only includes elements that are defined in the DECT CI specification,
ETS 300 175, parts 1 to 8 [1] to [8]. This includes radio transmission elements together
with a selection of layer 2 and layer 3 elements.

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ETS 300 370: February 1998
Generic Access Profile (GAP): A defined part of the DECT CI specification ETS 300 175, parts 1 to
8 [1] to [8], that ensures inter–operability between FPs and PPs for public business and residential access
services.
geographically unique identity: This term relates to FP identities, Primary Access Rights Identities
(PARIs) and Radio Fixed Part Identities (RFPIs). It indicates that two systems with the same PARI, or
respectively two Radio Fixed Parts (RFPs) with the same Radio Fixed Part Identity (RFPI), can not be
reached or listened to at the same geographical position.
Global Network (GNW): A telecommunication network capable of offering a long distance
telecommunication service.
NOTE 9: The term does not include legal or regulatory aspects, nor does it indicate if the
network is a public or a private network.
globally unique identity: The identity is unique within DECT (without geographical or other restrictions).
handover: The process of switching a call in progress from one physical channel to another physical
channel. These processes can be internal (see internal handover) or external (see external handover).
NOTE 10: There are two physical forms of handover, intra–cell handover and inter–cell handover.
Intra–cell handover is always internal. Inter–cell handover can be internal or external.
incoming call: A call received at a PP.
inter–cell handover: The switching of a call in progress from one cell to another cell.
internal handover: Handover processes that are completely internal to one Fixed radio Termination (FT).
Internal handover re–connects the call at the lower layers, while maintaining the call at the NWK layer.
NOTE 11: The lower layer reconnection can either be at the Data Link Control (DLC) layer
(connection handover) or at the Medium Access Control (MAC) layer (bearer
handover).
inter–operability: The capability of FPs and PPs, that enable a PP to obtain access to teleservices in
more than one location area and/or from more than one operator (more than one service provider).
inter–operator roaming: Roaming between FP coverage areas of different operators (different service
providers).
Interworking Unit (IWU): A unit that is used to interconnect sub–networks.
NOTE 12: The IWU will contain the interworking functions necessary to support the required sub–
network interworking.
intra–cell handover: The switching of a call in progress from one physical channel of one cell to another
physical channel of the same cell.
intra–operator roaming: Roaming between different FP coverage areas of the same operator (same
service provider).
Local Network (LNW): A telecommunication network capable of offering local telecommunication
services.
NOTE 13: The term does not include legal or regulatory aspects, nor does it indicate if the
network is a public network or a private network.
locally unique identity: The identity is unique within one FP or location area, depending on application.
location area: The domain in which a PP may receive (and/or make) calls as a result of a single location
registration.
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ETS 300 370: February 1998
location registration: The process whereby the position of a DECT portable termination is determined to
the level of one location area, and this position is updated in one or more databases.
NOTE 14: These databases are not included within the DECT FT.
Medium Access Control (MAC) connection: An association between one source MAC Multi–Bearer
Control (MBC) entity and one destination MAC MBC entity. This provides a set of related MAC services (a
set of logical channels), and it can involve one or more underlying MAC bearers.
outgoing call: A call originating from a PP.
Portable Application (PA): A logical grouping that contains all the elements that lie beyond the DECT
network boundary on the portable side.
NOTE 15: The functions contained in the portable application may be physically distributed, but
any such distribution is invisible to the DECT network.
Portable Part (DECT Portable Part) (PP): A phy
...