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INTRODUCTION
AT Commands for EV-DO-EV3 Modems
22
Command Response Timeout
If response codes are enabled, which is the default setting, then every command issued to the module returns a
result response.
The time needed to process the given command and return the response varies depending on the command type.
Commands that do not interact with the network, and only involve internal setups or readings, have a quicker
response than commands that require network interaction.
The table below lists the commands whose network interaction may lead to long response times. When not
otherwise specified, timing is referred to set commands.
For phonebook and SMS writing and reading related commands, timing is referred to commands issued after
phonebook sorting completes.
For DTMF sending and dialing commands, timing is referred to the module registered on the network
(“AT+CREG?” answer is “+CREG: 0,1” or “+CREG: 0,5”).
Command
Estimated maximum time to get response (Seconds)
+CPBR 5 (single reading)
15 (complete reading of a 500 records full phonebook)
+CPBF 10 (string present in a 500 records full phonebook)
5 (string not present)
+CPBW 5
+VTS 5 (transmission of full “1234567890*#ABCD” string with no delay between
tones, default duration)
+CSAS 5
+CRES 5
+CMGS 120 after CTRL-Z; 1 to get ‘>’ prompt
+CMSS 120 after CTRL-Z; 1 to get ‘>’ prompt
+CMGW 5 after CTRL-Z; 1 to get ‘>’ prompt
+CMGD 5 (single SMS cancellation)
25 (cancellation of 50 SMS)
+CMGR 5
+CMGL 100
D 40
A 5 (voice call)
H 2
+CHUP 2
#TONE 5 (if no duration specified)
#EMAILD 60
#EMAILACT 150
- EV-DO and CDMA 1
- Contents 3
- CONTENTS 18
- Introduction 19
- String Type Parameters 20
- Command Lines 20
- Command Response Timeout 22
- Command Issuing Timing 23
- Command Line Prefixes 26
- Hardware Revision #HWREV 28
- V.250 AT Commands 29
- Model Identification +GMM 32
- Capabilities List +GCAP 32
- Serial Number +GSN 33
- DTE Modem Interface Control 35
- Quiet Result Codes Q 36
- Response Format V 36
- Extended Result Codes X 37
- Flow Control &K 39
- Standard Flow Control \Q 39
- Ring (RI) Control \R 40
- Call Control 43
- Return to on-line mode O 44
- Answer A 44
- Compression Control 45
- S Parameters 45
- Ring Counter S1 46
- Escape Character S2 47
- Escape Prompt Delay S12 49
- Delay to DTR Off S25 49
- Error Control 50
- V.250 AT COMMANDS 51
- Reference: V.25ter 51
- 3GPP TS 27.007 AT Commands 52
- Multiplexing Mode +CMUX 54
- Network Service Handling 57
- Call Waiting +CCWA 60
- List Current Calls +CLCC 61
- Mobile Equipment Control 62
- Set Phone Functions +CFUN 63
- Signal Quality +CSQ 64
- Clock Management +CCLK 69
- Alarm Management +CALA 70
- Delete Alarm +CALD 72
- Alert Sound Mode +CALM 72
- Ringer Sound Level +CRSL 73
- Mobile Equipment Errors 74
- Voice Control 75
- Tone Duration +VTD 76
- General Configuration 77
- Message Format +CMGF 79
- Message Configuration 80
- Save Settings +CSAS 82
- Restore Settings +CRES 83
- List Messages +CMGL 86
- Read Message +CMGR 88
- PDU Mode 89
- Message Sending And Writing 91
- Notes PDU Mode 92
- Example PDU Mode 92
- Notes Text Mode 95
- Example Text Mode 96
- Delete Message +CMGD 97
- Custom AT Commands 99
- Software Shut Down #SHDN 101
- Extended Reset #Z 101
- Wake from Alarm Mode #WAKE 102
- Parameters and Values 103
- CUSTOM AT COMMANDS 104
- Example 106
- ATD Dialing Mode #DIALMODE 114
- Automatic Call #ACAL 114
- SMS Overflow #SMOV 117
- Audio Codec #CODEC 118
- Network Timezone #NITZ 118
- RTC Status #RTCSTAT 120
- Show Address #CGPADDR 121
- Cell Monitor #MONI 122
- Multisocket AT Commands 124
- Socket Info #SI 125
- Context Activation #SGACT 126
- Socket Shutdown #SH 127
- Socket Configuration #SCFG 128
- Socket Dial #SD 131
- Socket Restore #SO 132
- Socket Listen #SL 133
- Socket Listen UDP #SLUDP 134
- Socket Accept #SA 135
- Single Socket AT Commands 139
- FTP AT Commands 140
- FTP Close #FTPCLOSE 141
- FTP Put #FTPPUT 141
- FTP Get #FTPGET 141
- FTP Type #FTPTYPE 142
- FTP Read Message #FTPMSG 142
- FTP Delete #FTPDELE 143
- FTP List #FTPLIST 144
- Query DNS #QDNS 145
- Manual DNS Selection #DNS 146
- Firewall Setup #FRWL 148
- Data Volume #GDATAVOL 149
- ICMP Ping Support #ICMP 150
- PING Request #PING 150
- TCP Reassembly #TCPREASS 152
- E-mail SMTP Server #ESMTP 153
- E-mail Sending #EMAILD 157
- ENHANCED IP STACK AT COMMANDS 159
- GPS AT Commands Set 160
- GPS Reset $GPSR 161
- Command Command type 163
- AT$GPSACP Execute 163
- AT$GPSACP? Read 163
- AT$GPSACP=? Test 163
- Save GPS Parameters $GPSSAV 165
- Clear GPS Data $GPSCLRX 166
- GPS Lock Mode $GPSLOCK 166
- CDMA Custom AT Commands 168
- Syntax 170
- Modem NAM Parameters #ENG 171
- CDMA Notification #NOTI 173
- Mobile Station ID $MSID 176
- Service Status #SVCSTAT 177
- RM Interface Setting +CRM 181
- Data Session AT Commands 182
- Packet Zone ID +PZID 183
- Test Origination #TESTORI 184
- EVDO Specific AT Commands 185
- COMMANDS 186
- AUDIO COMMANDS 187
- Audio Commands 188
- Select Ringer Sound #SRS 189
- Select Ringer Path #SRP 190
- Tones Configuration 191
- Tone Classes Volume #TSVOL 192
- Headset Sidetone #SHFSD 196
- Handset Sidetone #SHSSD 197
- Audio Profiles 199
- Echo Canceller Configuration 203
- Digital Voice Interface 205
- Miscellaneous Audio Commands 205
- Examples 209
- RX AGC Enable #SRXAGC 211
- Verizon Specific AT Commands 214
- NAM Lock #NAMLOCK 217
- Read Message +VCMGR 217
- List Message +VCMGL 219
- Set Payload Length #SMSPSIZ 222
- Preferred Roaming List $PRL 224
- Reset $RESET 224
- Example 225
- Clear MRU Table #CLRMRU 226
- Mobile IP Commands 229
- Home Address $QCMIPHA 232
- Medium Data Rate $QCMDR 243
- AT Parser Abort 245
- CME Error List 246
- CMS Error List 247
- CMS ERROR LIST 248
- Acronyms 249
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