Siemens M1 manual EnterAT+CREG? GSM module +CREG 0,0 = not registered, AT+COPS Operator selection

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Technical reference section

Example:

Enter:AT+CREG?

GSM module: +CREG: 0,0 => not registered

OK

AT+COPS - Operator selection

These commands allow you to read out the current network operator, display a list of available network operators or select a operator directly. Various command extensions are available.

	AT+COPS

Command	Result

AT+COPS?	Displays current network operator.

AT+COPS=?	Displays a list of network operators that are currently
	available via radio.

AT+COPS=<mode n>,	Allows you to instruct the GSM module to use a spe-
<format f>,	cific network operator.
<network operator>

AT+COPS? - Display current network operator

This command displays the network operator that is currently selected. It also provides you with information on whether the radio modem has selected this network operator automatically or whether you manually instructed it to select this operator.

A result code with the following format is returned in response to the AT+COPS? com- mand:

AT+COPS?

Command	AT+COPS?

Result code	+COPS: <mode n>, <format f>, <operator>

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Contents GSM Contents Technical reference section Contents GSM documentation Technical dataGeneral information GSM Module M1 Product description FeaturesGSM Module M1 Description of the interfaces Hybrid connector manufacturer-specificSIM card InterfacePower supply / power consumption Installation / startup Mounting the moduleSwitching the GSM module on/off Cable assignmentSetting / testing the COM interface Installation / startupPower consumption Overvoltage / undervoltageATB13 Setting the GSM radio transfer rateATB7 AT+CPIN? Setting up and clearing down connections+CPIN SIM PIN AT+CPIN=1234AT&F TroubleshootingATH Own errors Connection cannot be set upSystem errors GSM module does not dial Incorrect characters on screenCannot receive fax Overview of AT commands General AT commands GSM AT commands GSM Overview of AT commandsSMS AT commands GSM Connecting to your GSM module AT command line prefixCommand syntax of the AT standard Technical reference section AT standardATH ATS7?Q0E1 Technical reference sectionATD0123456789 AT&F0Connect ErrorRing No CarrierTransparent mode Command modeEscape command Operating modesSetting the transfer rate ATOn Return to transparent modeATH Go on-hook ATB ATBn Select GSM module’s operating modeATB99 ATD ATD Dial a telephone numberValid dial strings Dial ATD+4989telephone numberATD123456789 AT%Dn Automatic dialing with DTRAtdl AT&Z0=123456789ATS0=n Auto-answer mode Displaying and storing a configurationATA Answer a call Stored Profile AT&V Active ProfileTelephone Numbers &Z0= Z1= Z2= Z3=Screen outputs Limits of screen outputs ATEn Command echoATQn Activate and deactivate result codes Control line options AT&Cn Data Carrier Detect DCD options ATXn Extended connect messageAT&Dn Data Terminal Ready DTR options Memory commandsData flow control AT&Zn=x Store telephone number AT&Wn Store configurationAT&Z0 = ATDS=n Dial stored telephone numberAT&Yn Configuration at power-up AT+C commands for GSMATZn Load user profile AT+CXXSN = ?+CGMI Siemens AT+CGMIAT+CGMM +CGMM M1AT+CGSN Request product serial number ID AT+CEER Extended error reportAT+CHUP Hangup call Enter AT+CMEE Report mobile equipment error AT+CEER GSM moduleAT+CREG? +CME ErrorAT+CREG? AT+CREG Network registrationAT+COPS Operator selection EnterAT+CREG? GSM module +CREG 0,0 = not registeredAT+COPS? AT+COPS=?+COPS 0, 0, Operator Name AT+COPS?AT+COPS=? Display list of available network operators AT+COPS=?Privat TelekomAT+CPIN Enter PIN and query blocks AT+CPIN2 Enter PIN2 and query PIN2 blocks +CME Error Wrong PasswordAT+CPIN2=1234 AT+CPWD Change passwordAT+CPWD=? +CPWD SC,8,PS,8, P2,8Errors AT+CSQ Signal qualityAT+CSQ ReceiveAT+CKPD=? AT+CKPD Keypad controlAT+CKPD=? +CKPD 0123456789*#CDEISUXYZAT+CXXSN=? AT+CXXSN Single-numbering parameterization+CXXSN 0,1,2 AT+CXXSN=?AT+CXXSN=2 +CXXMOC 0,1 AT+CXXMOC=?AT+CXXMOC=1 AT+CPBS=? AT+CPBS Select phonebook memory storage+CPBS MD , SM , OW , FD AT+CPBR=? AT+CPBR Read phonebook entriesAT+CPBR=? +CPBR index, number length, textAT+CPBW Write phonebook entry AT+CBST? AT+CBST Select bearer service typeAT+CBST=? AT+CRC? AT+CRC Cellular result codeAT+CRC=? AT+CRC?AT+CLIP? AT+CLIP Calling line identification presentationAT+CLIP=? AT+CLIP?AT+CPAS=? AT+CPAS Phone activity statusAT+CPAS=? +CPAS 0 1 2 3 4AT+FCLASS? AT+FCLASS Select modeAT+FCLASS=? AT+FCLASS=?AT+CXXCID Card identification AT+C commands for the short message service SMSAT+CXXCID=? Parameter command syntax AT+CSMS Select message serviceValues implemented AT+CPMS Preferred message storageAT+CMGF Message format AT+CSCA Service center addressIf PDU mode +CMGF=0 and command successful Action command syntaxIf PDU mode +CMGF=0 If send is successful AT+CMGR Read messageAT+CMGD Delete message AT+CMGW Write message to memoryAT+CNMI New message indications AT+CMGL List messages AT+CMS Error message service failure result codes+CMGL=? Value definitionsAT+FDT= S-registersAT+FCR= AT+FAAAT+FBUF?AT+FBOR EnterATS0?S7? ATSn? Read an S-registerATSn=x Write to an S-register ATS0=3Binary and decimal values in S-registers You wish to enter the following parameter values Bit position registersDecimal input and binary storage OFF Overview of the S-registers Please noteDTR on OFF Technical reference section ABC AT&T1AT&T0 ATIn Display GSM module I-data Interface Technical data GeneralTechnical data Hybrid connector manufacturer-specific Fax Technical data GSM modesFAX G3 DataEtsi contact GSM documentation GSM reference documentsEuropean Telecommunications Standards Institute General information CE-Sign ServiceGeneral information