Commands for Serial Port Control

HUAWEI MG323 GSM M2M Module
AT Command Interface Specification	Commands for Serial Port Control

4 Commands for Serial Port Control

This chapter describes the AT commands for controlling the serial ports of the module.

4.1AT\Q - Command for Enabling Software or Hardware Flow Control

The AT\Q command sets the flow control mode.

Execution AT\Q[<n>] command

Function Sets the flow control mode.

Response z In case of successful execution: <CR><LF>OK<CR><LF>

zIn case of not supporting RTS/CTS when n = 2 or 3: <CR><LF>ERROR<CR><LF>

Note:

zHardware flow control is recommended, especially for the data service and multiplexing.

zIn the case of CSD data service, hardware flow control must be adopted.

Parameter description

<n>: integer, which is not saved upon power failure; AT\Q is equivalent to AT\Q0.

z0 (default value): disables flow control.

z1: XON/XOFF software flow control.

z2: Only CTS by DCE(TA).

z3: RTS/CTS hardware flow control.

4.2AT&C - Command for Setting the DCD Usage State

The AT&C command sets the relation between the status of the DCD line and signal detection of the remote receiving line.

Issue 02 (2010-11-23)	Huawei Proprietary and Confidential	37
	Copyright © Huawei Technologies Co., Ltd.

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$Huawei MG323 manual Commands for Serial Port Control, AT\Q Command for Enabling Software or Hardware Flow Control$

Contents

AT Command Interface Specification No Warranty About This Document HistoryVersion Date Chapter Descriptions Contents Commands for Status Control Commands for Security Control Commands for Call Control Commands for Network Services 110 135 156 160 182 204 Figures Tables 142 Content Description Overall DescriptionProduct Description A command or a response Overview of AT Command InterfacesDescription of AT Commands Instructions for Use Types of AT Commands Prefixed with + 1Format of a basic command Command Format Description 3Types and formats of extended and vendor-defined commands Command Command Format Description Type Abort Attributes of AT Commands Rules for Running AT Commands Organization of This Document Chapter Describes Chapter Describes Commands for Configuration AT&F Command for Restoring Factory Settings AT\Q AT&C AT+CMERAT+CIND AT&D AT&V Command for Querying the Current Configuration Execution commandExamples of Results Returned by the &V Command AT&W Command for Storing the Current Configuration Error errCRLFAT Commands ATQ Command for Controlling the Return of Execution Results ATS7 AT+CRATS3 ATS4 ATS5 Connect ATV Command for Setting the Formats of ME ResponsesString Format Numeric Meaning Ring Error ATZ Command for Restoring the Settings Saved by the UserATE Command for Setting Echo Busy Querying the Supported Work Modes AT+CFUN Command for Setting the Work ModeTest command Fun Function Description Remarks Setvice 7Relations between work modes and servicesSetting Value URC Read AT+CFUN? command Reading the Current Work ModeSetting the Work Mode Write Execution Atsmso command Atsmso Command for System ShutdownSetting System Shutdown Examples AT+GCAP +GCAP +CGSM Execution AT+GCAP commandName string for example, +CGSM AT+GCAP=? Reading the Terminal Error Reporting Mode 11 AT+CMEE Command for Setting Terminal Error ReportingQuerying the Error Reporting Mode Supported by the Terminal Test AT+CMEE=? command Test AT+CSCS=? command 12 AT+CSCS Command for Setting the TE CharacterSetting the Terminal Error Reporting Mode Querying the Character Set Supported by the TE Reading the Character Set of the TE Setting the Character Set of the TEDefault value UCS2 Value Atscfg Extended Command for Setting Configuration Items Test ATSCFG=? commandStr Value Value Description Setting Configuration Items Sysstart Command for Unsolicitedly Reporting Module StartupReading the Settings for Configuration Items Read ATSCFG? command URC Crlfshutdowncrlf Querying the Supported Settings for Event Reporting Commands for Status ControlAT+CMER Command for Setting Event Reporting Test AT+CMER=? command AT+CIND Command for Controlling Indication Events Reading the Current Settings for Event ReportingSetting the Event Reporting Mode Test AT+CIND=? command IndDescr IndValue Setting Whether to Report Indication Events Read AT+CIND? commandReading the Current Indication Status Sysstart Atsind Extended Command for Controlling Indication EventsQuerying the Supported Report Events AT+CIND=? IndDescr IndValue Reading the Current Event Reporting Mode Read Querying the Supported Radio Networks AT+WS46 Command for Selecting a Radio NetworkTest AT+WS46=? command Crlfsind Read AT+WS46? command +CIEV Command for Indicating the Status ChangeSetting the Radio Network to Be Registered Reading the Current Radio Network AT&C Command for Setting the DCD Usage State Commands for Serial Port ControlAT\Q Command for Enabling Software or Hardware Flow Control AT\Q command sets the flow control mode AT&D Command for Setting the DTR Usage State AT&S Command for Setting the DSR Usage State Read AT+IPR? command AT+IPR Command for Setting the Baud RateTest AT+IPR=? command Querying the Supported Baud Rates of the DTE-DCE Querying the Supported Settings for Multiplexing AT+CMUX Command for Setting MultiplexingSetting the Baud Rate of the DTE-DCE Test AT+CMUX=? command Issue 02 Huawei Proprietary and Confidential Case of an error CRLF+CME Error errCRLF Reading the Current Settings for MultiplexingSetting Multiplexing Command Checking Whether a PIN Management Command Exists Commands for Security ControlAT+CPIN Command for PIN Management Reading the Password Entry Request Responding to the Password Entry Request Example Enter the PIN code for unlocking AT+CLCK command locks and unlocks the device AT+CLCK Command for Locking and Unlocking the DeviceChecking the Devices Supported by This Command AT+CPIN? +CPIN SIM PIN Locking and Unlocking the Device AT+CLCK=SC,2 AT+CPWD Command for Modifying the PasswordAT+CPWD command modifies the password +CLCK Modifying the Password TestAT+CPWD=? Example Run AT+CPWD to modify the PIN code Card+CLCK0 Commands for Identification ATI Command for Querying the Product Information +GCAP +CGSM AT+CGMI/GMI Command for Querying the Vendor InformationATI ATI4 Huawei MG323 Querying the Vendor Information Request AT+CGMM/GMM Command for Querying the Product ModelAT+CGMM/GMM command queries the product model Query the vendor information AT+CGMM Querying the Product Model Number RequestExample Query the product model number MG323 AT+CGMR Querying the Software Version NumberExample Query the software version number 11.810.01.00.00 OK AT+GMR Querying the Imei AT+CGSN/GSN Command for Querying the ImeiChecking Whether the Command for Querying the Imei Exists Char Test AT+CIMI=? command AT+CIMI Command for Querying the ImsiChecking Whether the Command for Querying the Imsi Exists Querying the Imsi Example Query the Imsi AT+CIMI46009755200774 Commands for Call Control ATD Command for Originating a CallCase of failed link establishment Crlfno Carriercrlf ATD*99# Command for Requesting the Gprs Service ATD*98# Command for Requesting the Gprs IP ServiceCarriercrlf ATH Command for Hanging Up the Connection Execution ATHn commandCrlfconnectcrlf Crlfokcrlf ATA Command for Answering a Call or Data ServicesReading the Settings of the Automatic Answer Data Services Crlfno Carriercrlf Setting Unsolicitedly Answering Data Services Reading the Set Waiting Duration Request Setting the Waiting Duration Test AT+CRLP=? commandQuerying the Supported RLP Parameters AT+CBST Command for Setting the Bearer Service Type Setting the Bearer Service Type Querying the Supported Bearer Service TypesQuerying the Current Bearer Service Type Test AT+CBST=? command Execution +++ Command 10 +++ Command for Switching Data Mode to Command ModeATO Command for Switching Command Mode to Data Mode Execution ATOn command 12.2 AT+CHUP Command for Hanging Up 12 AT+CHUP Command for Hanging Up Data Services13 AT+CR Command for Setting the Service Reporting Mode Checking Whether AT+CHUP Hang-up Is Supported Mode integer Default value disables service reporting Querying the Supported Settings for Service ReportingReading the Current Settings for Service Reporting Connect Querying the Supported Settings for the Cell Result Codes 14 AT+CRC Command for Setting the Cell Result CodesSetting Service Reporting AT+CRC=? Settings the Cell Result Codes 15 AT+VTS Command for Sending the Dtmf ToneQuerying the Current Settings for the Cell Result Codes AT+VTS command sends the Dtmf tone Supported nsCRLF Querying the Settings Supported by the AT+CLIP CommandSending the Dtmf Tone AT+CLIP=? 16.4 +CLIP Command for Unsolicitedly Reporting the CLI Reading the Settings of the Clip ServiceSetting the Clip MCRLF Ring Command for Unsolicitedly Reporting Incoming Calls Type character string. -3 lists the values 3type valuesURC Crlfringcrlf Checking Whether This Command Is Supported Commands for Network ServicesAT+COPN Command for Querying the Operator Name AT+COPN command queries the operator name Reading the List of Operators AT+COPS Command for Selecting OperatorsExecution AT+COPN command AT+COPN=? Crlfokcrlf AT+COPS=? Setting the Current Operator InformationExample Obtain the list of available operator information AT+COPS? AT+CREG command queries network registration AT+CREG Command for Querying Network RegistrationChecking the Parameter Range Supported by This Command Case of an error during command execution Setting the Status of Network Registration Querying the Current Status of Network Registration AT+CSQ Command for Querying the Signal Quality AT+CREG?AT+CREG=2 CRLF+CSQ list of supported rssis,list of supported bersCRLF Example Query the parameter range supported by the command Atsmonc Command for Querying the Cell InformationQuerying the Current Signal Quality AT+CSQ=? Querying the Cell Information Checking Whether This Command Is AvailableTest ATSMONC=? command Atsmonc Atsmonc Smonc ATSMONC=?Example Query the current cell information ATSMOND=? Execution Atsmond command RSSI,BER BER bit error rate 0-7 AtsmondATMONI=? 1List of parameters for the serving cell Parameter DescriptionParameter values set for the ME in different states MCC MNC LAC ME has accessed the cell and registered with the networkServing cell Dedicated Channel NCC BCC PWR Execution Atmoni command Crlfcrlfokcrlf ATMONI=? AtmoniATMONI=1 Atmonp Command for Monitoring Idle Neighbor Cells PWRDBm Q ChMod Case of an error related to the MT during command Execution CRLF+CME Error errCRLFATMONP=? Execution Atmonp command Obtaining the Monitoring Information About Neighbor Cells ATMONP=? Monp ATMONP=1 Example Query the information about neighbor cellsAtmonp Chann rs DBm MCC MNC BCC 712 460 001 735 705 Atsmong Command for Gprs Monitoring 712 20 -73 460Bcch NOM PbcchPAT RAC Execution Atsmong command Crlfbcch G Pbcch PAT MCC MNC NOM TA Example Obtain the parameter range ATSMONG=?Smong 1,1-100 ATSMONG=1,1 AtsmongBcch Pbcch PAT MCC MNC NOM TA RAC Bcch Pbcch PAT MCC MNC NOM RAC Atsplm Command for Reading the Plmn List Atsplm command reads the Plmn list552 460 255 Example Query the list of operators saved on the ME Execution Atsplm commandQuerying the List of Operator Names Saved on the ME Atsplm AT+CPOL command sets the list of preferred operators Default value operator information oper in numeric format Operator indicates an operator name in numeric format Setting the List of Preferred OperatorsQuerying the List of Preferred Operators Example Add a preferred operator AT+CPOL=1,2,46000 Querying the Current Range of Preferred Operators Atsplr Command for Querying Preferred OperatorsAtsplr command queries preferred operators Indexa sequence number range supported by the SIM card Atsplw Command for Writing Preferred Operators ATSPLR=1,2 14 AT+CNUM Command for Querying Subscriber Numbers Writing the Information About Preferred Operators Execution AT+CNUM command Querying the Msisdn Related to SubscribersCRLF+CNUM AT+CNUM AT+CPBS=ONAT+CPBW=1,13903702769,145 Query the Msisdn AT+CPBS=ON AT+CPBW=1 AT+CNUM Commands for Data Services Querying the Supported Status of PDP ContextAT+CGACT=? Reading the Activation State of the PDP Context Setting the Activation State of the PDP ContextCase of an error related to the MT CRLF+CME AT+CGACT? AT+CGACT=1,1 Checking the Supported Gprs Service StateAT+CGACT? +CGACT 1,0 AT+CGACT? AT+CGATT? Querying the Current Gprs Service StateSetting the Gprs Service State AT+CGATT=0 AT+CGEREP Command for Reporting Gprs Events Checking the Supported Gprs Event Reporting ModeAT+CGEREP=? Reading the Gprs Event Reporting Mode Setting the Gprs Event Reporting ModeURC Network requests for Gprs detachment AT+CGDATA Command for Entering the Data ModeURC +CGEV NW Detach URC +CGEV MT Detach Case of failed communication establishment Crlfno Case of failed command executionEstablishing Communication Between the TE and Network AT+CGDATA=? AT+CGDCONT? AT+CGDCONT Command for Defining the PDP ContextRun +++ to quit the data mode and enter the command mode +CGDCONT1,IP,1234,0.0.0.0,0,0 Establish the communication Querying the Range of PDP Related Parameters AT+CGDCONT=? +CGDCONT1,IP,1234,,0,0 Setting the Status of the PDP ContextReading the Status of the PDP Context CRLF+CGDCONT …CRLFCRLF Crlfokcrlf Reading the PDP Address List of the Specified PDP Context AT+CGPADDR Command for Reading the PDP AddressQuerying the Supported PDP Index Value AT+CGPADDR=? Read the PDP address. AT+CGPADDR=1 +CGPADDR1,192.168.50.64 Querying the Supported QoS Parameter Range Delay Level Average Percentile Transmission DelayWhen the size of SDU is 1024 octets AT+CGQMIN=? Issue 02 Huawei Proprietary and Confidential 124 Querying the Minimum QoS of All PDP Contexts CRLF+CGQMIN Checking the Parameter Range Supported by the Command AT+CGQREQ Command for Setting the Requested QoS ProfileSetting the Minimum QoS of a PDP Context AT+CGQREQ=? Delay Level Average Transmission Delay Percentile Issue 02 Huawei Proprietary and Confidential 128 Write comm Functi on Respo nse Setting the QoS of a PDP ContextQuerying All QoS Levels Specified by the TE CRLF+CGQREQ AT+CGREG=? 4 +CGREG Command for Reporting Unsolicitedly Querying the Supported SMS Bearer Domains 10 AT+CGSMS Command for Selecting the MO SMS Bearer DomainAT+CGSMS command sets the MT SMS bearer domain Reading the Current SMS Bearer Domain Setting the SMS Bearer Domain Issue 02 Huawei Proprietary and Confidential 134 Checking Whether the Sics Command Is Available Commands for Internet ServicesAtsics Command for Creating a Connection Profile Atsics command can create and edit a connection profile Reading the Information About Connection Profiles CSD Not SupportedCurrently Setting the Internet Connection Profile Query the status of the connection profile Atsici Command for Querying the Connection ProfileAtsici command queries the status of the connection profile ATSICS? ATSICI=? Querying the ID of the Defined Connection ProfileQuerying the Status of the Connection Profile ATSICI? ATSICI=? Displaying the Status of the Specified Connection ProfileExample Query the ID of the supported connection profile ATSICI? Atsiss command sets the service profile Atsiss Command for Creating the Service ProfileReading the Status of the Service Profile Test ATSISS=? command SrvParmTag Mandatory/Optional SrvParmTag SrvParmValue Setting the Internet Service Profile Query the status of the service profile Atsisi Command for Querying the Service ProfileQuerying the ID of the Defined Service Profile Atsisi command queries the status of the service profile Querying the Status of the Service Profile Crlfsisi Displaying the Status of the Specified Service Profile ATSISI=?ATSISI? This command starts a specified Internet service Atsiso Command for Starting Internet ServicesQuerying the Open Status of All Services ATSISO? Starting a Specified Internet Service Example Enable serviceATSISO=0 Atsisc Command for Stopping Internet Services Stopping a Specified Internet ServiceATSISO? Test ATSISW=? command Atsisw Command for Writing Data for Internet ServicesWriting Data to the Buffer of a Service ATSISC=0 Sisw Command for Reporting Unsolicitedly Example Check whether the command is availableATSISW=? Atsisr command reads data out from the service buffer Atsisr Command for Internet Services to Read DataChecking Whether the Atsisr Command Is Available User enters 20 characters here Reading Data Out From the Buffer of an Internet Service Crlfsisr Sisr Command for Reporting Unsolicitedly Exmaples URC Crlfsis srvProfileId,urcCause, urcInfoId,urcInfoTextCRLF Commands for Short Messages 11.1 AT+CMGD Command for Deleting Short MessagesAT+CMGD=? Example AT+CMGD=? +CMGD1-255 Check the parameter range Case of an error related to the MS CRLF+CMSDeleting Short Messages AT+CMGD=1 Stored on the SIM card Checking the Supported Format of Short MessagesDelete all the short messages that are AT+CMGF=? AT+CMGF=0 Setting the Format of Short MessagesReading the Format of Short Messages AT+CMGF? AT+CMGF=0, that is, when short messages are in PDU mode Checking the Supported Status of Short Messages Reading the List of Short Messages SCAOct Oct to 1Oct 12 Oct AT+CMGL=4 11.4 AT+CMGR Command for Reading Short Messages+CMGL 1,1 …Short messages in PDU mode AT+CMGR=? Index of the SIM card CRLF+CME Error When short messages are in PDU mode +CMGR=0CRLF+CMS Error errCRLF Reading Short Messages This command sends short messages in PDU mode +CMGF=0 11.5 AT+CMGS Command for Sending Short MessagesTest AT+CMGS=? command Write command 11.6 AT+CMGW Command for Storing Short Messages AT+CGSMS=1 AT+CMGF=0AT+CMGS=20 Storing Short Messages This command stores short messages in PDU mode +CMGF=0Example Store a short message in PDU mode AT+CMGF=0 AT+CMGW=56 Sending a Short Message at the Specified Location Test AT+CMSS=? commandWhen the short message is in PDU mode +CMGF=0 Short message is successfully sent Location whose index is +CMSS Example Send a stored short message in PDU modeAT+CMGF=0 AT+CMSS=8 AT+CNMI=? Issue 02 Huawei Proprietary and Confidential 169 AT+CNMI=1,1,0,0,0 Setting the Status of Short Message NotificationReading the Status of Short Message Notification CRLF+CNMI AT+CPMS command sets the storage location of short messages Checking the Storage Location of Short MessagesAT+CPMS=? Reading the Status of Storage Location AT+CPMS?CRLF+CPMS AT+CPMS=? 11.10 AT+CSCA Command for Setting the NumberSetting the Storage Location AT+CPMS? Checking Whether the Command Is Available Response z When the Smsc has been registeredReading the Currently Registered Number of the Smsc Number is organized by the network Setting the Number of the SmscManagement or service. The subscriber cannot use this value Number falls within the number range of the home country AT+CSCB command selects the type of cell messages AT+CSCA?+CSCA 1380063859 Example Query the current CBM information Setting the Current CBM TypeReading the Current CBM Type AT+CSCB? AT+CSCB=? 11.12 AT+CSMS Command for Setting the Message Service TypeAT+CSMS command sets the message service type +CSCB 0,1 Example AT+CSMS=? +CSMS Reading the Current Message Service TypeSetting the Message Service Type AT+CSMS? +CMTI command is used to indicate that a new SM is received 11.13 +CMTI Command for Unsolicitedly Reporting SMS Arrival11.14 +CMT Command for Unsolicitedly Reporting a New SM +CMT command is used to indicate that a new SM is received 11.15 +CBM Command for Unsolicitedly Reporting a Cell SM Commands for the SIM Card Checking Whether the +CRSM Command Is AvailableAT+CRSM=? Accessing the SIM Database CRLF+CRSM Checking the Parameter Range Supported by the +CPBR Command Commands for the Phone Book13.1 AT+CPBR Command for Reading the Phone Book AT+CPBR command reads the phone book 13.1.2 +CPBR Command for Reading the Phone Book AT+CPBR=?CRLF+CPBR 13.2 AT+CPBW Command for Writing the Phone Book Example Query the parameter range supported by this command Writing a Record into the Phone BookAT+ CPBW=? 13.3 AT+CPBS Command for Selecting the Phone Book Memory Checking the Value Range Supported by the +CPBS CommandAT+CPBS=? AT+CPBS=? Setting the Memory Type of the Phone BookReading the Current Memory of the Phone Book +CPBS FD,SM,ON,LD,MC,RC,EN Example AT+CPBS? +CPBS SM,23,250 ExampleAT+CPBS=SM Integer, which indicates the index of the alarm clock array Commands for Hardware ControlCase of an error related to the MT CRLF+CME Error 14.1 AT+CALA Querying the Set Alarm Clock Setting an Alarm ClockAT+CALA? +CALA 0,0,1-16 Example Query the current alarm clock 14.2 AT+CCLK Command for Setting the System Time14.1.4 +CALA Command for Reporting Unsolicitedly AT+CALA=? Querying the Current System Time Setting the System TimeTest ATCCLK=? command AT+CCLK? Example Query the current system time AT+CCLK? This chapter describes the AT commands for audio control Commands for Audio ControlAtswspath Command for Switching Between Audio Channels Atswspath command switches the audio channel Reading the Current Audio Channel Switching the Audio ChannelAT+CMIC command adjusts the the mircophone gain level Querying the Supported Microphnoe Gain Levels Atecho command suppresses the echo Atecho Command for Suppressing the EchoSetting the Microphone Gain Level Querying the Current Microphone Gain Level ATECHO=? Case of an errorCRLFERRORCRLFQuerying the Supported Echo Suppressing Functions ATECHO? Querying the Supported Speaker Volume Level 15.4 AT+CLVL Command for Adjusting the Speaker VolumeSetting the Echo Suppressing Function AT+CLVL command adjusts the speaker volume Setting the Speaker Volume 15.5 AT+CMUT Command for Muting and Unmuting the MicrophoneReading the Current Speaker Volume AT+CMUT command is used to mute and unmute the microphone Test AT+CMUT=? command Querying the Supported Muting Settings for the MicrophoneReading the Curent Muting Settings of the Microphone AT+CMUT? Setting the Muting Function of the Microphone Execution Command Other Commands16.1 A/ Command for Executing the Previous Command Again Execution command Function Querying the Current Command Line Ending Character Setting the Command Line Ending CharacterATS3? Querying the Current Format Character 16.3 ATS4 Command for Setting the Response Format Character013 Example Set the command line ending character ATS3=13 CRLFnCRLFCRLFOKCRLF Example Query the current response format character 16.4 ATS5 Command for Setting the Backspace CharacterSetting the Response Format Character ATS4? Setting the Current Backspace Character Querying the Current Backspace CharacterATS5? ATS5=8 Crlftherm modeCRLF List of effects on AT commands imposed by SIM PIN 1List of effects on AT commands imposed by SIM PINAppendix Commands for security control Commands for status controlCommands for serial port control Commands for identification ATS7 AT+CRLP AT+CBST Commands for network servicesCommands for data services ATO AT+CHUP AT+CR AT+CRC AT+VTS AT+CLIP Command related to the SIM card Commands for Internet servicesCommands for short messages Commands for the phone book Commands for audio control List of URC CommandsCommands related to the hardware Other commands AT+CGEREP AT+CALA Sysstart Alarm ModeSIS AT+CGEREP +CGEV NW Detach +CGEV ME Detach List of CME/CMS Error Codes 3Common CME Error codesErr Code Text AT+CMEE=2 4CME Error codes related to the Gprs Err Code Text AT+CMEE=2 Not Supported Currently 5CMS Error codes related to the SMS6CME Error codes related to the MG323 only No +CNMA ACK ExpectedPage Acronyms and Abbreviations 7Acronyms and abbreviationsAcronym and Abbreviation Full Spelling PIN PDPPDU Plmn XCD XERWcdma

Huawei MG323 manual Commands for Serial Port Control, AT&C Command for Setting the DCD Usage State

Models: MG323