ETSI ETS 300 532 ed.1 (1994-09)

European digital cellular telecommunications system (Phase 2); Support of Dual Tone Multi-Frequency signalling (DTMF) via the GSM system (GSM 03.14)

DE/SMG-030314P

Evropski digitalni celični telekomunikacijski sistem (faza 2) – Podpora dvotonske večfrekvenčne (DTMF) signalizacije prek sistema GSM (GSM 03.14)

General Information

• Status: Published
• Publication Date: 12-Sep-1994
• Technical Committee: SMG 3 - Network Aspects
• Current Stage: 12 - Completion
• Due Date: 03-Oct-1994
• Completion Date: 13-Sep-1994
• Ref Project: SIST ETS 300 532 E1:2003 - European digital cellular telecommunications system (Phase 2); Support of Dual Tone Multi-Frequency signalling (DTMF) via the GSM system (GSM 03.14)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ETS 300 532 E1:2003
01-december-2003
(YURSVNLGLJLWDOQLFHOLþQLWHOHNRPXQLNDFLMVNLVLVWHPID]D±3RGSRUDGYRWRQVNH
YHþIUHNYHQþQH'70)VLJQDOL]DFLMHSUHNVLVWHPD*60*60
European digital cellular telecommunications system (Phase 2); Support of Dual Tone
Multi-Frequency signalling (DTMF) via the GSM system (GSM 03.14)
Ta slovenski standard je istoveten z: ETS 300 532 Edition 1
ICS:
33.070.50 Globalni sistem za mobilno Global System for Mobile
telekomunikacijo (GSM) Communication (GSM)
SIST ETS 300 532 E1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 532 E1:2003

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SIST ETS 300 532 E1:2003
EUROPEAN ETS 300 532
TELECOMMUNICATION September 1994
STANDARD
Source: ETSI TC-SMG Reference: GSM 03.14
ICS: 33.060.30
European digital cellular telecommunications system, Global System for Mobile communications
Key words:
(GSM)
European digital cellular telecommunications system (Phase 2);
Support of Dual Tone Multi-Frequency signalling (DTMF)
via the GSM system
(GSM 03.14)
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - [e-mail]
X.400: Internet:
Tel.: [phone] - Fax: [phone]
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 1994. All rights reserved.
New presentation - see History box

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ETS 300 532: September 1994 (GSM 03.14 version 4.1.1)
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 300 532: September 1994 (GSM 03.14 version 4.1.1)
Contents
Foreword.5
1 Scope .7
2 Normative references .7
3 Definitons and abbreviations.7
4 Requirement .7
5 Cause of DTMF generation .7
6 Support of DTMF across the air interface.8
6.1 General.8
6.2 Specific.8
6.3 Tone durations.9
7 Effect of Handover .13
7.1 Internal Handover. 13
7.2 External Handover.13
History.14

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ETS 300 532: September 1994 (GSM 03.14 version 4.1.1)
Foreword
This European Telecommunication Standard (ETS) has been produced by the Special Mobile Group
(SMG) Technical Committee (TC) of the European Telecommunications Standards Institute (ETSI).
This ETS defines the Discontinuous Reception (DRX) in the GSM system for the European digital cellular
telecommunications system (Phase 2). This ETS corresponds to GSM Technical Specification (GSM-TS)
GSM 03.14 version 4.1.1.
The specification from which this ETS has been derived was originally based on CEPT documentation,
hence the presentation of this ETS may not be entirely in accordance with the ETSI/PNE rules.

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ETS 300 532: September 1994 (GSM 03.14 version 4.1.1)
1 Scope
This Technical Specification describes how DTMF (Dual Tone Multi Frequency) signals are supported in
the GSM system.
2 Normative references
This ETS incorporates by dated and 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] GSM 01.04 (ETR 100): "European digital cellular telecommunications system
(Phase 2); Abbreviations and acronyms".
[2] GSM 05.02 (prETS 300 574): "European digital cellular telecommunications
system (Phase 2); Multiplexing and multiple access on the radio path".
[3] CEPT T/CS 34-08: "Automatic sender for pushÄbutton multifrequency signalling".
[4] CEPT T/CS 46-02: "Multifrequency signalling system to be used for pushÄbutton
telephones".
3 Definitons and abbreviations
Abbreviations used in this specification are listed in GSM 01.04.
4 Requirement
Dual Tone Multi Frequency (DTMF) is an inband one out of four plus one out of four signalling system,
primarily used from terminal instruments in telecommunication networks. The international
recommendations which apply are CEPT recommendations T/CS 34-08 (sender) and T/CS 46-02
(receiver) as detailed in sections 6.2 and 6.3.
In the GSM system the MSC must support DTMF in the mobile to land direction.
The support of this facility in the land to mobile direction is for further study.
The use of DTMF is only permitted when the speech teleservice is being used or during the speech phase
of alternate speech/data and alternate speech/facsimile teleservices. The responsibility for checking this
lies in the MS.
5 Cause of DTMF generation
A user may cause a DTMF tone to be generated by depression of a key in the MS. Optionally (on a mobile
station basis) manufacturers of mobile equipment may choose to allow DTMF to be controlled from a
remote terminal.
The man-machine interface questions associated with this facility are not discussed further in this Technical
Specification.

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6 Support of DTMF across the air interface
6.1 General
A message based signalling system is used across the GSM air interface.
This requires that the relevant user action (e.g. a key depression) is interpreted by the mobile station as a
requirement for a DTMF digit to be sent, this is converted by the mobile station into a message, the
message is transmitted across the air interface, and is converted by the MSC into a DTMF tone which is
applied towards the network, which should then respond with an acknowledgement. When the user
completes the key depression, an message that the DTMF sending should cease is also passed to the
MSC, which again will respond with an acknowledgement.
6.2 Specific
The messages to be sent across the air interface will use the frame stealing mode of transmission.
The messages when sent across the air interface should contain the following information:
a) START DTMF : Containing the digit value (0-9,A,B,C,D,*,#);
b) START DTMF ACKNOWLEDGE: Containing the digit value (0-9,A,B,C,D,*,#) corresponding to the
DTMF tone that the network applies towards the remote user;
c) STOP DTMF : No further info;
d) STOP DTMF ACKNOWLEDGE: No further info.
Only a single digit will be passed in each START DTMF and START DTMF ACKNOWLEDGE message.
The messages will be pas
...