Sierra Wireless GM47 Service Manual Page 127
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3. CONTROL AND STATUS
127
LZT 123 7263 R1C
3.32 AT+CTZU Automatic Time Zone Update
Enables and disables the automatic time zone update via NITZ. If
setting fails in an ME error, +CME ERROR <err> is returned.
Description Command Possible Responses
Enable and disable
automatic time zone
update via NITZ
AT+CTZU=<onoff> • +CME ERROR: <err>
•OK
•ERROR
Show the current
setting
AT+CTZU? • +CTZU: <onoff>
• +CME ERROR: <err>
•OK
•ERROR
Show if the command
is supported
AT+CTZU=? • +CTZU: (list of
supported <onoff>s)
• +CME ERROR: <err>
•OK
•ERROR
<onoff> Description
0 The automatic time zone update is disabled (off). Default
value
1 The automatic time zone update is enabled (on)
- GM47/GM48 1
- First edition (April 2002) 2
- Second edition (August 2002) 2
- Third edition (January 2003) 2
- Contents 3
- GM47/GM48 INTEGRATOR’S MANUAL 10
- Part 1: Overview 11
- 1. Introduction 13
- Part 4 - Using AT Commands 14
- 2. GM47/GM48 Modules 15
- 2.3 Features 17
- 2.3.2 Short Message Service 18
- 2.3.3 Voice Calls 18
- 2.3.4 Data 18
- 2.4 Service and Support 19
- 2.5 Precautions 20
- 3. Abbreviations 21
- Part 2: Developer’s Kit 23
- 1. INTRODUCTION 27
- 2. Using the Developer’s Kit 29
- 2.1 Start up Check List 30
- 2.2 Developer’s Board Overlay 31
- JP21 JP18 32
- Part 3: Integrating the 37
- Antenna connector 39
- System connector 39
- 1.2 Physical Dimensions 40
- 2. System Connector Interface 41
- 2.3 Grounds 45
- 2.5.2 VIO - 2.75V Supply 47
- 2.6 Analogue Audio 48
- 2.6.3 Microphone Signals 50
- 2.6.4 Speaker Signals 51
- 2.7 PCM Digital Audio 52
- 16 bit data word 53
- 13 bit PCM= D13 D0 53
- PCM Timing Diagrams 54
- 2.8 Serial Data Interfaces 55
- Serial Data From Module (RD) 56
- Serial Data To Module (TD) 56
- Ω to VCC 57
- 2.9 SIM Card Related Signals 59
- 2.10 Service/Programming 61
- 2.11 Buzzer 61
- 2.12 LED 61
- 2.15 External I 65
- C Serial Control Bus 65
- 2.17 Real Time Clock 66
- Figure 2.10 RTC connections 67
- 3. Antenna Connector 68
- 4.1.1 General 69
- 4.1.2 SIM Card 69
- 4.1.3 Antenna 70
- Environmental Conditions 70
- Ω for the ground connection 72
- 4.3.2 Antenna Type 73
- 4.3.3 Antenna Placement 73
- 4.3.4 The Antenna Cable 73
- 5. Technical Data 75
- Environmental specifications 76
- Data Storage 76
- 6. Declaration of Conformity 77
- 7. FCC Certificate 78
- Part 4: Using AT Commands 79
- 1.1 Overview 81
- 1.2 Syntax Description 81
- 1.2.2 AT Command Syntax 82
- Basic Syntax Command 82
- 1.2.3 AT Response Syntax 84
- Final Result Code 84
- 1.3 Error Codes 85
- 1.5 SMS Text Mode 87
- Notification of SMS 88
- Reading messages 88
- Listing messages 88
- 1.6 GPRS Communication 89
- 2. Call Control 91
- 2.3 ATD Dial 92
- 2.4 ATH Hang up 94
- 2.7 ATP Select Pulse Dialling 95
- 2.8 ATT Select Tone Dialling 95
- 2.10 AT+CHUP Hang up Call 96
- 2.11 AT+CMOD Call Mode 97
- 2.12 AT+CVHU Voice Hang-Up 98
- 3. Control and Status 101
- LZT 123 7263 R1C 102
- Unsolicited result codes: 107
- [<number>,<type>] 107
- AT*ECAM? 108
- *ECAM: 0 108
- AT*ECAM=1 108
- 3.16 AT+CALA Set Alarm 111
- 3.17 AT+CALD Alarm Delete 112
- 3.26 AT+CPIN PIN Control 120
- AT+CPIN=“0000” 121
- 3.27 AT+CPWD Change Password 122
- AT+CPWD=“SC”,“0000”,“0001” 123
- 3.30 AT+CSAS Save Settings 125
- 3.31 AT+CSQ Signal Strength 126
- 4. Audio 129
- DSPCODEC 130
- Examples 134
- 5. Data - CSD/HSCSD 153
- AT+CRLP? 156
- +CRLP: 61,61,48,6,0 156
- +CRLP: 120,120,48,6,2,3 156
- 6. Data - GPRS 157
- 7. Data - HSCSD 171
- 8. GPS Interoperability 177
- 8. GPS INTEROPERABILITY 179
- 9.2 Low Level Fax Commands 182
- 10. Identification 183
- 10. IDENTIFICATION 189
- 11. Input/Output 191
- Unsolicited Result Codes: 194
- Reading an I/O: 194
- Writing in an Output: 194
- Configuring an I/O: 195
- Checking an I/O status: 195
- Triggering an Input: 196
- Checking an Input Trigger: 196
- 12. Interface 197
- 12.5 AT+WS46 Mode Selection 198
- 12.6 ATE Command Echo 198
- 12.7 ATV DCE Response Format 199
- 13. Network 209
- EXAMPLES 221
- 13.11 AT+CLCK Facility Lock 223
- 14. Phonebook 235
- <gindex> 239
- 14.11 AT+CPBF Phonebook Find 243
- 14.12 AT+CPBR Phonebook Read 243
- AT+CPBR=1,99 244
- 14.13 AT+CPBS Phone Storage 245
- 14.14 AT+CPBW Phonebook Write 246
- 15.1 AT+CPIN PIN Control 251
- 15.5 AT+CMGF Message Format 254
- PDU Mode 255
- Text Mode 256
- 15.7 AT+CMGS Send Message 257
- PDU mode 260
- 15.9 AT+CMGC Send Command 262
- Unsolicited Result codes: 265
- 15.11 AT+CMGR Read Message 268
- 15.12 AT+CMGL List Message 274
- 15.13 AT+CMGD Delete Message 280
- Only Applicable to Text Mode 281
- AT+CSCB? 287
- +CSCB: 0,“50” 287
- 17. SIM Application Toolkit 289
- 17.11 *E2STKP STK Send SS 303
- 17.12 *E2STKU STK Send USSD 304
- 17.13 *E2STKR STK Refresh 305
- Unsolicited result code: 306
- *E2STKTO: <command> 306
- 18. Supplementary Services 307
- 18.4 AT+CAOC Advice of Charge 309
- 18.12 AT+CCWA Call Waiting 321
- Example 1 331
- AT+CUSD=1,“*#100#” 332
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