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MM6854/64 Dual Band GSM Data Modem
Issue 1.0 ME 820047
03/00 Page iii
TABLE OF CONTENTS
1 INTRODUCTION 1
1.1 Overview 1
1.2 How this document is organised 1
1.3 What are the MM6854/64 1
1.4 Recommended Procedures 1
1.5 Contact Information 1
1.6 Summary 2
2 SPECIFICATIONS 3
2.1 Basic Specifications 3
2.2 Summary 4
3 SYSTEM APPLICATIONS 5
3.1.1 GSM / GPS Application 6
4 OPERATION 7
4.1 Introduction 7
4.2 Network Connection 7
4.2.1 Inserting the SIM card 7
4.3 Turning on the modem 8
4.4 V.24 Interface 8
4.5 Set up the appropriate software 8
4.6 Confirming Operation 9
4.7 Summary 9
5 AT COMMANDS 11
5.1.1 +++<CR> - Escape command 12
5.1.2 A – Re-execute last command 12
5.1.3 ATA – Manually answer an incoming call 13
5.1.4 ATD – Dial a telephone number 13
5.1.5 ATDL 13
5.1.6 ATE – Command Echo 14
5.1.7 ATH – Hang up 14
5.1.8 ATIn - Identification 14
5.1.9 ATO0 – Return to transparent mode (switch from command mode to data mode). 15
5.1.10 ATQ - Result code suppression 15
5.1.11 ATS0=n – Auto-answer mode 15
5.1.12 ATS1? – Number of rings 15
5.1.13 ATS2- Escape character 16
5.1.14 ATS3 – Command line termination character 16
5.1.15 ATS4 – Line Feed character 16
5.1.16 ATS5 – Backspace character 16
5.1.17 ATS6 – Pause before blind dialling 16
5.1.18 ATS7 – Wait time for carrier 17
5.1.19 ATS8 – Wait time before dialling 17
5.1.20 ATS10 – Wait time before disconnection 17
5.1.21 ATS12 – Escape code guard time 17
5.1.22 ATV – Results code format 17
5.1.23 ATX – Defines CONNECT results code format 18
5.1.24 ATZ – Load user profile 18
5.1.25 AT&C – Data carrier detect options 18
5.1.26 AT&D – Data Terminal Ready options 18
5.1.27 AT&F – Restore default configuration 19
5.1.28 AT&V – Display current configuration 19
5.1.29 AT&W – Save current configuration 19
5.1.30 AT+CBSTs,m,p – Select bearer service type 20