ETSI ETS 300 916 ed.7 (1999-03)

Digital cellular telecommunications system (Phase 2+) (GSM); AT command set for GSM Mobile Equipment (ME) (GSM 07.07 version 5.8.1 Release 1996)

RE/SMG-040707QR6

Digitalni celični telekomunikacijski sistem (faza 2+) – Nabor ukazov AT za mobilno opremo (ME) sistema GSM (GSM 07.07, različica 5.8.1, izdaja 1996)

General Information

• Status: Published
• Publication Date: 22-Mar-1999
• Technical Committee: SMG 4 - Data Services
• Current Stage: 12 - Completion
• Due Date: 26-Mar-1999
• Completion Date: 23-Mar-1999
• Ref Project: SIST ETS 300 916 E7:2003 - Digital cellular telecommunications system (Phase 2+) (GSM); AT command set for GSM Mobile Equipment (ME) (GSM 07.07 version 5.8.1 Release 1996)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ETS 300 916 E7:2003
01-december-2003
'LJLWDOQLFHOLþQLWHOHNRPXQLNDFLMVNLVLVWHPID]D±1DERUXND]RY$7]DPRELOQR
RSUHPR0(VLVWHPD*60*60UD]OLþLFDL]GDMD
Digital cellular telecommunications system (Phase 2+) (GSM); AT command set for GSM
Mobile Equipment (ME) (GSM 07.07 version 5.8.1 Release 1996)
Ta slovenski standard je istoveten z: ETS 300 916 Edition 7
ICS:
33.070.50 Globalni sistem za mobilno Global System for Mobile
telekomunikacijo (GSM) Communication (GSM)
SIST ETS 300 916 E7:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 916 E7:2003

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SIST ETS 300 916 E7:2003
EUROPEAN ETS 300 916
TELECOMMUNICATION March 1999
STANDARD Seventh Edition
Source: SMG Reference: RE/SMG-040707QR6
ICS: 33.020
Key words: Digital cellular telecommunications system, Global System for Mobile communications (GSM)
R
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS
Digital cellular telecommunications system (Phase 2+);
AT command set for GSM Mobile Equipment (ME)
(GSM 07.07 version 5.8.1 Release 1996)
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
Internet: [e-mail] - http://www.etsi.org
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 1999. All rights reserved.

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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 Standards Making Support Dept." at the address shown on the title page.

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Contents
Intellectual Property Rights.7
Foreword.7
Introduction.8
1 Scope .9
2 References.9
3 Abbreviations and definitions .11
3.1 Abbreviations .11
3.2 Definitions .12
4 AT command syntax .12
4.1 Command line.12
4.2 Information responses and result codes.13
4.3 ITU-T V.25ter [14] TE-TA interface commands.13
5 General commands.14
5.1 Request manufacturer identification +CGMI.14
5.2 Request model identification +CGMM .15
5.3 Request revision identification +CGMR .15
5.4 Request product serial number identification +CGSN .16
5.5 Select TE character set +CSCS .16
5.6 Request international mobile subscriber identity +CIMI.17
5.7 Multiplexing mode +CMUX $(MUX MS-TE)$.17
5.8 ITU-T V.25ter [14] generic TA control commands.19
5.9 PCCA STD-101 [17] select wireless network +WS46 .19
5.10 Informative examples.20
6 Call control commands and methods.21
6.1 Select type of address +CSTA.21
6.2 ITU-T V.25ter [14] dial command D.21
6.3 Direct dialling from phonebooks .22
6.4 Call mode +CMOD.23
6.5 Hangup call +CHUP.24
6.6 Alternating mode call control method .24
6.7 Select bearer service type +CBST.26
6.8 Radio link protocol +CRLP.28
6.9 Service reporting control +CR.28
6.10 Extended error report +CEER.29
6.11 Cellular result codes +CRC .30
6.12 HSCSD device parameters +CHSD .30
6.13 HSCSD transparent call configuration +CHST .31
6.14 HSCSD non-transparent call configuration +CHSN.31
6.15 HSCSD current call parameters +CHSC .32
6.16 HSCSD parameters report +CHSR .33
6.17 Single numbering scheme +CSNS .33
6.18 Voice Hangup Control +CVHU $(AT R97)$.34
6.19 V.120 rate adaption protocol +CV120.35
6.20 ITU-T V.25ter [14] call control commands .36
6.21 ITU-T V.25ter [14] data compression commands.36
6.22 Informative examples.36
7 Network service related commands.37

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7.1 Subscriber number +CNUM. 37
7.2 Network registration +CREG. 38
7.3 Operator selection +COPS. 39
7.4 Facility lock +CLCK . 40
7.5 Change password +CPWD . 42
7.6 Calling line identification presentation +CLIP. 42
7.7 Calling line identification restriction +CLIR. 43
7.8 Connected line identification presentation +COLP. 44
7.9 Closed user group +CCUG . 45
7.10 Call forwarding number and conditions +CCFC. 46
7.11 Call waiting +CCWA.47
7.12 Call related supplementary services +CHLD . 48
7.13 Call deflection +CTFR .49
7.14 Unstructured supplementary service data +CUSD . 49
7.15 Advice of Charge +CAOC . 50
7.16 Supplementary service notifications +CSSN. 51
7.17 List current calls +CLCC . 52
7.18 Preferred operator list +CPOL $(AT R97)$. 53
7.19 Read operator names +COPN $(AT R97)$ . 54
7.20 Informative examples.54
8 Mobile Equipment control and status commands. 56
8.1 Phone activity status +CPAS. 57
8.2 Set phone functionality +CFUN. 58
8.3 Enter PIN +CPIN . 59
8.4 Battery charge +CBC . 60
8.5 Signal quality +CSQ .60
8.6 Mobile Equipment control mode +CMEC. 61
8.7 Keypad control +CKPD . 61
8.8 Display control +CDIS . 63
8.9 Indicator control +CIND. 63
8.10 Mobile Equipment event reporting +CMER. 64
8.11 Select phonebook memory storage +CPBS. 66
8.12 Read phonebook entries +CPBR . 66
8.13 Find phonebook entries +CPBF . 67
8.14 Write phonebook entry +CPBW. 68
8.15 Clock +CCLK. 69
8.16 Alarm +CALA . 69
8.17 Generic SIM access +CSIM. 70
8.18 Restricted SIM access +CRSM. 71
8.19 Secure control command +CSCC. 72
8.20 Alert sound mode +CALM $(AT R97)$ . 73
8.21 Ringer sound level +CRSL $(AT R97)$ . 73
8.22 Vibrator mode +CVIB $(AT R97)$. 74
8.23 Loudspeaker volume level +CLVL $(AT R97)$. 74
8.24 Mute control +CMUT $(AT R97)$ . 75
8.25 Accumulated call meter +CACM $(AT R97)$ . 75
8.26 Accumulated call meter maximum +CAMM $(AT R97)$ . 76
8.27 Price per unit and currency table +CPUC $(AT R97)$. 76
8.28 Informative examples.77
9 Mobile Equipment errors. 80
9.1 Report Mobile Equipment error +CMEE. 80
9.2 Mobile Equipment error result code +CME ERROR . 81
9.3 Informative examples. 82
Annex A (normative): Summary of commands from other standards . 83
Annex B (normative): Summary of result codes . 85
Annex C (informative): Commands from TIA IS-101. 86
C.1 Introduction . 86

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C.2 Commands.87
C.2.1 Select mode +FCLASS.87
C.2.2 Buffer threshold setting +VBT.87
C.2.3 Calling number ID presentation +VCID.87
C.2.4 Receive gain selection +VGR .88
C.2.5 Transmit gain selection +VGT .88
C.2.6 Initialise voice parameters +VIP .88
C.2.7 Inactivity timer +VIT .89
C.2.8 Line selection +VLS .89
C.2.9 Receive data state +VRX.90
C.2.10 Select compression method +VSM.91
C.2.11 DTMF and tone generation +VTS.91
C.2.12 Tone duration +VTD .92
C.2.13 Transmit data state +VTX.92
Annex D (informative): Bibliography.93
Annex E (informative): Mobile originated alternating voice/data call example .94
Annex F (informative): Mobile terminated voice followed by data call example.95
Annex G (informative): Voice call example.96
Annex H (informative): Change History.97
History.99

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Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The
information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-
members, and can be found in SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially
Essential, IPRs notified to ETSI in respect of ETSI standards", which is available free of charge from the
ETSI Secretariat. Latest updates are available on the ETSI Web server (http://www.etsi.org/ipr).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI.
No guarantee can be given as to the existence of other IPRs not referenced in SR 000 314 (or the
updates on the ETSI Web server) which are, or may be, or may become, essential to the present
document.
Foreword
This European Telecommunication Standard (ETS) has been produced by the Special Mobile Group
(SMG) Technical Committee of the European Telecommunications Standards Institute (ETSI).
This ETS specifies the AT command for terminal equipment being used within the digital cellular
telecommunications system.
The contents of this ETS is subject to continuing work within SMG and may change following formal SMG
approval. Should SMG modify the contents of this ETS, it will be resubmitted for OAP by ETSI with an
identifying change of release date and an increase in version number as follows:
Version 5.x.y
where:
5 indicates GSM Phase 2+ Release 1996;
x the second digit is incremented for all changes of substance, i.e. technical enhancements,
corrections, updates, etc.
y the third digit is incremented when editorial only changes have been incorporated in the
specification.
Transposition dates
Date of adoption of this ETS: 26 March 1999
Date of latest announcement of this ETS (doa): 30 June 1999
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 December 1999
Date of withdrawal of any conflicting National Standard (dow): 31 December 1999

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Introduction
The present document includes some references to features which are not part of the original Phase 2+
release of the GSM Technical specifications. All subclauses and text which were changed as a result of
these features contain a marker (see table below) relevant to the particular feature.
The following table lists all new features that were introduced to this document after version 5.4.0.
Changes that were made as corrections to existing features are not listed in this table.
NOTE: following a decision made at ETSI SMG #25 requiring that all specifications containing
a release 97 work item be release as a version 6.0.0. Consequently, new release 97
features approved at or after ETSI SMG #25 are found only in the version 6.x.y of the
present document.
Feature Designator
Technical enhancement and improvement: New AT- $(AT R97)$
commands
Support of Multiplexer according to GSM 07.10 $(MUX MS-TE)$

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1 Scope
This European Telecommunication Standard (ETS) specifies a profile of AT commands and recommends
that this profile be used for controlling Mobile Equipment (ME) functions and GSM network services from
+C
a Terminal Equipment (TE) through Terminal Adaptor (TA). The command prefix is reserved for Digital
Cellular in ITU-T Recommendation V.25ter [14]. This ETS has also the syntax details used to construct
these extended GSM commands. Commands from ITU-T Recommendation V.25ter [14] and existing
digital cellular standards (TIA IS-99 [15] and TIA IS-135 [16]) are used whenever applicable. Some of the
new commands are defined such way that they can be easily applied to ME of networks other than GSM.
ITU-T T.31 [11] and T.32 [12] fax AT commands may be used for GSM fax transmission from TE. GSM
Short Message Service AT commands are defined in GSM 07.05 [24]. GPRS AT commands are defined
in GSM 07.60 [34].This ETS assumes an abstract architecture comprising a TE (e.g. a computer) and a
ME interfaced by a TA (see figure 1). The span of control of the defined commands should allow to handle
any physical implementation that this abstract architecture may lead to:
- TA, ME and TE as three separate entities;
- TA integrated under the ME cover, and the TE implemented as a separate entity;
- TA integrated under the TE cover, and the ME implemented as a separate entity;
- TA and ME integrated under the TE cover as a single entity.
The commands described in this ETS may be observed on the link between the TE and the TA. However,
most of the commands retrieve information about the ME, not about the TA.
responses ME status
TE TA ME
AT cmds ME control
network messages
USER & APPLICATIONS NETWORK
Figure 1: Setup
Interface between TE and TA is intended to operate over existing serial (ITU-T Recommendation V.24)
cables, infrared link, and all link types with similar behaviour. For correct operation many of the defined
commands require eight bit data and therefore it is recommended that TE-TA link is set to eight bits/ byte
mode. (For infrared operation implementation refer informative references IrDA. For embedding AT
commands and data during on-line data state refer TIA-617/ITU-T V.80.) Interface between TA and ME is
dependent on the interface in the ME.
2 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 02.02 (ETS 300 904): "Digital cellular telecommunication system
(Phase 2+); Bearer Services (BS) supported by a GSM Public Land Mobile
Network (PLMN)".
[2] GSM 02.03 (ETS 300 905): "Digital cellular telecommunication system
(Phase 2+); Teleservices supported by a GSM Public Land Mobile Network
(PLMN)".
[3] GSM 02.81: "Digital cellular telecommunication system; Line identification
supplementary services - Stage 1".

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[4] GSM 02.82: "Digital cellular telecommunication system; Call Forwarding (CF)
supplementary services - Stage 1".
[5] GSM 02.83: "Digital cellular telecommunication system; Call Waiting (CW) and
Call Hold (HOLD) supplementary services - Stage 1".
[6] GSM 02.88: "Digital cellular telecommunication system; Call Barring (CB)
supplementary services - Stage 1".
[7] GSM 03.03 (ETS 300 927): "Digital cellular telecommunication system
(Phase 2+); Numbering, addressing and identification".
[8] GSM 04.08 (ETS 300 940): "Digital cellular telecommunication system
(Phase 2+); Mobile radio interface layer 3 specification".
[9] GSM MoU SE.13, GSM MoU Permanent Reference Document SE.13: "GSM
Mobile Network Codes and Names".
[10] ITU-T Recommendation E.212: "Identification plan for land mobile stations".
[11] ITU-T Recommendation T.31: "Asynchronous facsimile DCE control, service
class 1".
[12] ITU-T Recommendation T.32: "Asynchronous facsimile DCE control, service
class 2".
[13] ITU-T Recommendation T.50: "International Reference Alphabet (IRA)
(Formerly International Alphabet No. 5 or IA5) - Information technology - 7-bit
coded character set for information exchange".
[14] ITU-T Draft new Recommendation V.25ter: "Serial asynchronous automatic
dialling and control".
[15] Telecommunications Industry Association TIA IS-99: "Data Services Option
Standard for Wideband Spread Spectrum Digital Cellular System".
[16] Telecommunications Industry Association TIA IS-135: "800 MHz Cellular
Systems, TDMA Services, Async Data and Fax".
[17] Portable Computer and Communications Association PCCA STD-101 Data
Transmission Systems and Equipment: "Serial Asynchronous Automatic Dialling
and Control for Character Mode DCE on Wireless Data Services".
[18] GSM 04.22 (ETS 300 946): "Digital cellular telecommunication system
(Phase 2+); Radio Link Protocol (RLP) for data and telematic services on the
Mobile Station - Base Station System (MS - BSS) interface and the Base Station
System - Mobile-services Switching Centre (BSS - MSC) interface".
[19] GSM 02.30 (ETS 300 907): "Digital cellular telecommunication system
(Phase 2+); Man Machine Interface (MMI) of the Mobile Station (MS)".
[20] GSM 05.08 (ETS 300 578): "Digital cellular telecommunication system
(Phase 2); Radio subsystem link control".
[21] GSM 02.85: "Digital cellular telecommunication system; Closed User Group
(CUG) supplementary services - Stage 1".
[22] GSM 02.84: "Digital cellular telecommunication system; MultiParty (MPTY)
supplementary services - Stage 1".
[23] GSM 02.90: "Digital cellular telecommunication system; Stage 1 description of
Unstructured Supplementary Service Data (USSD)".

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[24] GSM 07.05: "Digital cellular telecommunication system (Phase 2+); Use of Data
Terminal Equipment - Data Circuit terminating Equipment (DTE - DCE) interface
for Short Message Service (SMS) and Cell Broadcast Service (CBS)".
[25] GSM 03.38 (ETS 300 900): "Digital cellular telecommunication system
(Phase 2+); Alphabet and language specific information".
[26] GSM 02.24 (ETS 300 923): "Digital cellular telecommunication system;
Description of Charge Advice Information (CAI)".
[27] GSM 02.86: "Digital cellular telecommunication system; Advice of Charge (AoC)
supplementary services - Stage 1".
[28] GSM 11.11 (ETS 300 977): "Digital cellular telecommunication system
(Phase 2+); Specification of the Subscriber Identity Module - Mobile Equipment
(SIM-ME) interface".
[29] GSM 02.34: "Digital cellular telecommunication system (Phase 2+); High Speed
Circuit Switched Data (HSCSD) - Stage 1”.
[30] GSM 02.91: “Digital cellular telecommunication system (Phase 2+); Explicit Call
Transfer (ECT) supplementary service - Stage 1”.
[31] GSM 02.72: “Digital cellular telecommunication system (Phase 2+); Call
Deflection (CD) supplementary service - Stage 1”.
[32] ISO/IEC 10646: "Universal Multiple-Octet Coded Character Set (UCS)”; UCS2,
16 bit coding.
[33] GSM 02.22: “Digital cellular telecommunication system (Phase 2+);
Personalisation of GSM Mobile Equipment (ME) Mobile functionality
specification”.
[34] GSM 07.60: "Digital cellular telecommunication system (Phase 2+); General
requirements on Mobile Stations (MS) supporting General Packet Radio Bearer
Service (GPRS)".
[35] CCITT Recommendation V.110: "Support of data terminal equipments (DTEs)
with V-Series interfaces by an int
...