At instruction (Chinese detailed version) (i)

A General Command
1. At+cgmi gives the identification of the module manufacturer.
2. AT+CGMM get the module ID. This command is used to get a supported band (GSM 900,dcs 1800 or PCs 1900). When
When a module has multiple bands, the response may be a combination of different bands.
3. AT+CGMR get the software version of the module.
4. AT+CGSN obtains the IMEI (International Mobile device identification) serial number of the GSM module.
5. At+cscs Select Te feature setting. This command reports the ME on which state the TE is using.
The me can then convert each input or display letter. This is used to send. Read or compose text messages.
6. At+wpcs Set the phone book status. This special command reports ME through the state used by the TE phonebook.
The me can then convert each input or display string letter. This is used to read or write the phone book entrance.
7. At+cimi get IMSI.  This command is used to read or identify the SIM card's IMSI (International Mobile signer identifier). In the Read
You should first enter your PIN (if you need a pin) before IMSI.
8. At+ccid get the identity of the SIM card. This command allows the module to read the Ef-ccid file on the SIM card.
9. At+gcap the ability to obtain a table. (Supported Features)
10. A/repeats the last command. Only A/command cannot be duplicated. This command repeats the previous command executed.
11. AT+CPOF shut down the machine. This special command stops the GSM software stack and the hardware layer. Function of command at+cfun=0
Same as +CPOF.
12. At+cfun set the telephone to be able. This command selects the function level of the mobile site.
13. At+cpas returns the active status of the mobile device.
14. At+cmee report a mobile device error. This command determines whether to allow output error code "+CME error:<xxx>"
or "+cmserror:<xxx>" instead of the simple "ERROR".
15. AT+CKPD keypad control. Emulate the Me keypad execution command.
16. AT+CCLK Clock Management. This command is used to set or get the current date and time of the Me real clock.
17. At+cala Alert Management. This command is used to set the alert date/time in ME. (alarm)
18. AT+CRMP ringtone Melody play. This command plays a melody on the buzzer of the module. There are two kinds of melodies available: voice calls
and data or fax calls to melody and incoming SMS sounds.
19. AT+CRSL Sets or gets the sound level of incoming phone tones.

Two. Call control commands
1. ATD dialing Commands. This command is used to set up calls. Data or fax calls.
2. ATH Hang command.
3. ATA answer phone.
4. At+ceer Extended Error Reporting. This command gives the reason for interrupting the call after the last call setup failed.
5. AT+VTD provides users with the application of GSM network to send DTMF (dual tone multi-frequency) Dual audio. This command is used to define two tones
The length of the frequency (the default value is 300 milliseconds).
6. At+vts provides users with the application of GSM network to send DTMF dual audio. This command allows the transmission of dual audio.
7. Atdl redial the last phone number.
8. Automatic dialing when AT%DN Data Terminal Ready (DTR).
9. ATS0 Auto Answer.
10. AT+CICB to telecom poor.
11. At+csns single numbering scheme.
12. AT+VGR,AT+VGT gain control. This command is used to adjust the receiver gain of the loudspeaker and the transmit gain of the microphone.
13. At+cmut Microphone Mute Control.
14. At+speaker speaker/Microphone selection. This special command is used to select speakers and microphones.
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15. At+echo echo Cancellation.
16. At+sidet side tone correction.
17. AT+VIP initializes the sound parameters.
18. At+dui is dialed with additional user information.
19. At+hui hang up the machine with additional user information.
20. At+rui receive additional user information.

Three. Network SERVICE commands
1. AT+CSQ signal quality.
2. At+cops service Provider Selection.
3. At+creg Network registration. Get the phone's registration status.
4. AT+WOPN read operator name.
5. At+cpol list of preferred operators.

Four. Security commands
1. At+cpin Enter the PIN.
2. At+cpin2 input PIN2.
3. At+cpinc The remaining attempt number of the PIN.
4. At+clck device lock.
5. At+cpwd Change the password.

Five. Phone book commands
1. AT+CPBS Select phone Book memory storage.
2. AT+CPBR read the phonebook table.
3. AT+CPBF Find phone Book table entries.
4. AT+CPBW Write the Phone Book table.
5. AT+CPBP Phone book phone query.
6. AT+CPBN Phone book move action. This special command makes entries in the phone book move forward or back (alphabetically)
7. At+cnum the signer number.
8. AT+WAIP prevents all phone books from being initialized on the next restart.
9. AT+WDCP Delete the call phone number.
10. AT+CSVM Set the voice mail number.

Six. Short Message command
1. At+csms Select the message service. The supported services are GSM-MO. Sms-mt. SMS-CB.
2. At+cnma new information to confirm the answer.
3. At+cpms Priority Information Store. This command defines the storage area used to read and write information.
4. AT+CMGF Priority Information Format. The execution format is in TEXT mode and PDU mode.
5. At+csas Save the settings. Save the parameters for +csas and +CSMP.
6. At+cres restore settings.
7. AT+CSDH Displays the arguments for the text mode.
8. At+cnmi new information instructions. This command chooses how to receive text messages from the network.
9. At+cmgr read text messages. The information is read from the memory set by the +CPMS command.
10. AT+CMGL lists the stored information.
11. At+cmgs send a message.
12. AT+CMGW write short messages and store them.
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13. The AT+CMSS sends information from the memory.
14. AT+CSMP sets the parameters for the text mode.
15. AT+CMGD Delete SMS. Delete one or more SMS messages.
16. At+csca SMS Service Center address.
17. AT+CSCB Select the cell broadcast information type.
18. AT+WCBM Unit Broadcast Information identification.
19. At+wmsc the status of the information (whether it was read, sent, etc.) is fixed.
20. At+wmgo Information overwrite writes.
21. At+wuss does not change the SMS status. Unread is maintained after +cmgr or +CMGL is executed.

Seven. Append Service Command
1. AT+CCFC call continues.
2. At+clck call Forbidden.
3. At+cpwd Change the Append service password.
4. AT+CCWA Call Waiting.
5. At+clir Call Line confirmation limit.
6. At+clip Call Line Confirmation statement.
7. AT+COLP Contact Line Confirmation statement.
8. AT+CAOC expense report.
9. AT+CACM Cumulative call metering.
10. At+camm Cumulative call metering maximum value.
11. AT+CPUC Price and Currency table.
12. AT+CHLD call related add-on service.
13. AT+CLCC lists the current call.
14. AT+CSSN Additional service notifications.
15. AT+CUSD non-organized append service data.
16. At+ccug the closed user group.

Eight. Data commands
1. At+cbst Messenger type selection.
2. At+fclass selection mode. This command sets the module to a special mode for data or fax operations.
3. AT+CR Service reporting control. This command allows for a more detailed service report.
4. The result code of the AT+CRC partition. This command allows for more detailed ringtone indication when the call arrives.
5. AT+ILRR local DTE-DCE rate report.
6. AT+CRLP Radio Communication Line protocol parameters.
7. at+dopt other radio communication line parameters.
8. At%c data compression selection.
9. At+ds whether to allow V42 two degree data compression.
10. At+dr whether to report V42 two degree data compression.
11. at/n Data correction options.

Nine. Fax command
1. AT+FTM transfer rate.
2. AT+FRM Receive rate
3. At+fth sets the fax transfer rate with the HDLC protocol.
4. AT+FRH sets the fax receive rate with the HDLC protocol.
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5. At+fts stops the transmission and waits for a specific period.
6. At+frs receive silence.

10. Type II Fax command
1. AT+FDT transmit data.
2. AT+FDR receive data.
3. At+fet Transfer page punctuation.
4. At+fpts the page conversion status parameter.
5. AT+FK terminates the meeting.
6. At+fbor page conversion byte order.
7. At+fbuf buffer size report.
8. AT+FCQ Control Copy Quality inspection.
9. AT+FCR controls the ability to receive faxes.
10. At+fdis the current meeting parameters.
11. AT+FDCC set the DCE function parameters.
12. At+flid defines the local ID string.
13. At+fphcto page Conversion timeout parameter.

11. V25-V25 command
1. AT+IPR determines the DTE rate.
2. AT+ICF determines the DTE-DCE feature structure.
3. AT+IFC control DTE-DCE Local traffic.
4. At&c Set the DCD (data carrying detection) signal.
5. At&d Set the DTR (data Terminal ready) signal.
6. At&s Sets the DST (data Set Ready) signal.
7. The ATV determines the DCE response format.
8. ATZ reverts to the default setting.
9. At&w Save the settings.
10. ATE determines whether to echo characters.
11. At&f back to the factory setting.
12. AT&AMP;V displays the module settings.
13. At+wmux Data/Command multiplexing.

12. Special at command
1. At+cced Community Environment Description.
2. At+wind General instructions.
3. AT+ADC analog digital conversion metrics.
4. At+cmer mobile device Event reporting. This command determines whether to allow the result code to be actively sent when the key is pressed.
5. The language encoding that the AT+WLPR reads.
6. AT+WLPW write the language encoding.
7. At+wior read the GPIO value.
8. At+wiow Write GPIO values.
9. AT+WIOM input/output export management.
10. At+wtone play the melody.
11. AT+WDTMF plays DTMF melodies.
12. AT+WDWL into software download mode.
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13. AT+WVR Configure the messenger's sound rate.
14. AT+WDR Configuring Data Rates
15. AT+WHWV Displays the version of the hardware.
16. AT+WDOP Displays the factory date of the product.
17. At+wsvg sound gain selection.
18. AT+WSTR returns the state of the specified state.
19. At+wscan the signal strength received by the scan.
20. At+wrim set or return ringtone indication mode
21. at+w32k whether to allow 32kHz power saving mode.
22. AT+WCDM Change the default melody.
23. AT+WSSW Displays the internal software version.
24. At+wccs Edit or display the custom settings table.
25. At+wlck allows you to personalize ME on a specific operator.
26. At+cphs set the Cphs command.
27. AT+WBCM Battery charge Management.
28. AT+WFM feature Management. Allow certain features of the module, such as band mode and SIM card voltage.
29. AT+WCFM Business Characteristics Management. Whether to allow Wavecom special features.
30. At+wmir allows you to create a custom storage image from the currently stored parameter values
31. AT+WCDP The default player that changes the melody.

13. SIM Toolbox Commands
1. AT+STSF Configuration Toolbox Utility.
2. At+stin Toolbox instructions.
3. At+stgi gets information about the expected command sent from the SIM card.
4. AT+STCR offers the result: the Toolbox controls the reaction.
5. The AT+STGR gives a response. Allows a program or user to select items from the main menu, or to respond to certain commands.

At instruction (Chinese detailed version) (i)