ON/OFF and External Power Signal | Sony Ericsson GM48, GM47 instruction

GM47/GM48 INTEGRATOR’S MANUAL

The electrical characteristics for VCC are shown in the table below.

Parameter

Mode

Limit

Vcc supply voltage

Maximum allowable voltage drop

Current drawn, at full TX power

Nominal	3.6V

Tolerance	3.4V - 4.0V
including ripple a
Over-voltage limit	5.5V

Maximum ripple	TBD
Burst transmission	200mV

<350mA (average) <2A (peak)

a. Measured at system connector pins.

Note! GM47 has no internal capacitance to supply the large current peaks during GSM burst transmission. We recommend you follow these general guidelines:

•Fit a low ESR electrolytic capacitor close to the module: > 1,000µF;

<100mΩ ESR.

•Make sure power supply to module line resistance is <200mΩ.

2.5ON/OFF and External Power Signal

Pin	Signal	Dir	Description

14	ON/OFF	I	Pulse signal to turn the module on or off

34	VIO	O	2.75V supplied by the module

2.5.1 Switching the module ON and OFF

The module is turned on and off by momentarily grounding the ON/OFF pin. This input should be driven by an open collector, or other device which will not tie the input high, to allow the internal alarm clock function to operate. See the table below for exact characteristics. In the OFF state the current consumption of the module is less than 100µA.

The ON/OFF signal is a digital input with the following characteristics:

Parameter	Min.	Typ. Max.	Units

Voltage HIGH level (FALSE)		VCC	V

Voltage LOW level (TRUE)	0	0.3 x VCC	V

Pull-up resistance (internal)		39	kΩ

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LZT 123 7263 R1C

Image 46

Sony Ericsson GM48, GM47 manual ON/OFF and External Power Signal, Parameter Mode

Contents

GM47/GM48 All rights reserved Publication number LZT 123 7263 R1C Contents VIO 2.75V Supply Where to Install the ModuleDigital Ground Dgnd 14.1 Digital to Analogue Converter DAC 14.2 Conventions AT Command Syntax AT Response Syntax Connection Completion Timeout 105 Command Line Editing Character Backspace 104Blind Dial Delay Control 104 Ericsson Master Reset 109 Quality of Service Profile Requested 166 Select Bearer Service Type 153Quality of Service Profile Minimum Acceptable 164 Select Service for MO SMS Messages 170 Switch to 07.10 Multiplex Protocol 200 12.10 Command Echo 198 12.7Reset to Default Configuration 200 12.9 Restore SMS Settings 202 12.11 Service Centre Address 253 15.5 Ericsson Settings Number 242 14.11Select Service for MO SMS Messages 251 15.3 Send Command 262 15.10 M2M Supplementary Service Indications 314 18.11 Advice of Charge 309 18.5M2M Supplementary Service Dispatch 313 18.10 Supplementary Service Notification 328 18.17 Part 1 Overview Page Prerequisites IntroductionTarget Users Manual Structure Part 4 Using AT Commands About the GM47/GM48 Family GM47/GM48 ModulesGM47 in a Communication System Interface between the Module and the Application Features Gmsk Short Message Service Service and Support Average Power Consumption Precautions Abbreviations Abbreviation THD Part 2 Developer’s Kit Page Contents of the Kit Overview General Functioning of the Kit Module connections to the developer’s board Power supply connection and the on-board voltages Audio signals, connection and routing Using the Developer’s Kit Front view Start up Check List Developer’s Board Overlay Developer’s board overlay Jumpers, Switches and Connectors SW4 Service ON/OFF Dcio Simvcc Simrst Simclk Simdat Simpresence Simgnd Micn Bearn Bearp Micp PCMPcmuld Pcmdld Pcmclk Pcmsync Dgnd Pcmin Pcmout System EAR Test System Connector Pin Assignments System connector pin assignments Part 3 Integrating the Module Page Mechanical Description Interface Description Physical Dimensions Dimensions of the GM47 System Connector Interface GM47, viewed from underneath VCC SCL ADC3SDA Buzzer Atms General Electrical and Logical CharacteristicsAfms Agnd VCC Regulated Power Supply Input Grounds ON/OFF and External Power Signal Parameter Mode ON/OFF timing and VIO performance Times are defined as follows Analogue Audio AUX AMP Output at Afms for 3dBm0 at PcminOutput at BEARN/BEARP for 3dBm0 at Pcmin Rxpga Table below shows the audio signal levels for Afms Microphone connections to the module Speaker Signals PCM Digital Audio Electrical characteristicsPcmdld to Pcmin Pcmuld to Pcmout 16-bit data word format 16-bit word within 24-bit frame Serial Data Interfaces Pcmclk Pcmsyn Pcmout RD, TD RTS, CTS, DTR, DCD, RI OFF Table below shows the switching times UART2 TD2, RD2 Simvcc SIM Card Related SignalsRD is used to send data to your application via UART3 Simdata SIM Detection Simpresence 12 LED Service/ProgrammingBuzzer LED states shown below, are hard coded General Purpose Digital I/O Ports Following circuit should be used to connect an LED ADC1 General Purpose Analogue I/O PortsDAC ADC2 DAC loads External I 2C Serial Control Bus Txon Burst Transmission Real Time Clock Vrtc 10 RTC connections Antenna Connector Safety Advice and Precautions Hints for Integrating the Module Installation of the Module How to Install the Module Antenna Antenna Type Possible Communication Disturbances Technical Data Mechanical Specifications Environmental specifications Declaration of Conformity FCC Certificate Part 4 Using AT Commands Page Introduction to AT Commands Syntax Description Example! ATL=0CR sets the volume of the speaker CROKCRfinal result code response Example! AT+CFUN=0CR powers down the moduleExample! AT+CSCS?CR show current character set Crokcr final result code No dialling possible, wrong mode Command executed, no errorsInvalid command or command line too long Remote station busy Error Codes 2 +CMS Error Message Service Failure Result Code Examples on How to Use the AT Commands SMS Text Mode Reading messages is performed as in PDU mode +CMTI SM,2 Gprs Communication AT+CMGL=ALL GM47/GM48 INTEGRATOR’S Manual Answer Incoming Call Call ControlPIN Control See 3.26, AT+CPIN PIN Control No Dial Tone ATD DialBusy ATD07747008670 AT+VTS=4 Dialstring Description ATL Monitor Speaker Loudness Signals the MS to terminate an active callATH Hang up Included for compatibity. No functionality ATP Select Pulse Dialling ATO Return to Online Data ModeATT Select Tone Dialling 10 AT+CHUP Hang up Call ATX Call Progress Monitoring ControlDuring a call set-up AT+CMOD? 11 AT+CMOD Call ModeAT+CMOD=? 12 AT+CVHU Voice Hang-Up 13 AT+VTS Dtmf and Tone Generation Dtmf Ascii 100 ATQ Result Code Suppression Control and StatusATS0 Automatic Answer Control ATS2? ATS3 Command Line Termination CharacterATS2 Escape Sequence Character ATS3? ATS4 Response Formatting Character ATS4? Immediately preceding character ATS5 Command Line Editing Character BackspaceATS6 Blind Dial Delay Control Included for compatibility. No functionality Connection being established. If this time is exceeded then ATS7 Connection Completion TimeoutATS8 Comma Dial Modifier Delay Control Connection is aborted AT*ECAM? 10 ATS10 Automatic Disconnect Delay Control11 AT*ECAM Ericsson Call Monitoring AT*ECAM=? Control and Status Ecam This command sets the daylight saving time hours12 AT*EDST Ericsson Daylight Saving Time AT*EDST? AT*EMAR=? 13 AT*EMAR Ericsson Master ResetAT+CLCK 14 AT*EPEE 15 AT*ESMM Ericsson Settings Minute MinderInserted and accepted AT+CALA? 16 AT+CALA Set AlarmAT+CALA=? Unsolicited result codes +CALV n 17 AT+CALD Alarm DeleteThis command removes an active alarm AT+CALD=? AT+CCLK? 18 AT+CCLK Set Clock and Date+CCLK 00/01/01,225448+00 AT+CCLK=19/11/02,093000+00 AT+CCLK=? 20 AT+CFUN Set Phone Functionality 19 AT+CEER Extended Error ReportInformation given by the GSM network in text format AT+CIND? 21 AT+CIND Indicator ControlAT+CIND=? 22 AT+CLAC List all available AT Commands 23 AT+CMEE Mobile Equipment Error AT+CMER? 24 AT+CMER Mobile Equipment Event ReportingAT+CMER=? Unsolicited Result Codes +CKEV key,press +CIEV ind,value 25 AT+CPAS Phone Activity StatusAT+CPAS=? +CPAS 0,3,4,129,130,131 26 AT+CPIN PIN Control SIM PIN2 AT+CPIN=0000PH-SIM PIN SIM PUK2 27 AT+CPWD Change Password AT+CPWD=? AT+CPWD=SC,0000,0001 29 AT+CRC Cellular Result Code 28 AT+CR Service Reporting ControlDuring the handshake phase Intermediate Result Codes +CR serv Unsolicited Result Codes +CRING type 30 AT+CSAS Save SettingsAT+CSAS=? AT+CSQ 31 AT+CSQ Signal StrengthAT+CSQ +CSQ 13,99 AT+CSQ=? AT+CTZU? 32 AT+CTZU Automatic Time Zone UpdateSetting fails in an ME error, +CME Error err is returned AT+CTZU=? 128 AT*E2EAMS? AudioAT*E2EAMS Ericsson M2M Audio Profile Modification AT*E2EAMS=? Audio diagram of the Codec Configure current profile pr1 to pr21 Mute Volume Description MaxVolume AT*E2EAMS=? *E2EAMS=0-21,255 Current default profile is AT*E2EAMS? AT*E2APR? AT*E2APR= ErrorAT*E2APR M2M Audio Profile Manipulation AT*E2APR=? E2APR= 0-4,0-2,0-2 Current default profile is profile AT*E2APR? *E2APR AT*EALR? Ealr Ericsson Audio Line RequestATMS,AFMS AT*EALR=? AT*EAMS? Ericsson Audio Mode SelectionAT*EAMS=? AT*EARS? Ericsson Audio Ring SignalAT*EARS=? AT*E2PHFB Portable Handsfree Button Sense Enable Ericsson Local Audio Mode Ericsson Microphone Mode Ericsson Music Mute Indication Request Eprr 10 AT*EPRR Ericsson Personal Ring Type ReadAT*EPRR=? 11 AT*EPRW Ericsson Personal Ringtype Write Reserved. Not supported Beep. Not supported AT*ERIL? Eril 12 AT*ERIL Ericsson Ring Level SetAT*ERIL=? AT*ERIN? 13 AT*ERIN Ericsson Ring SetAT*ERIN= AT*ERIN=? AT*ERIP = 14 AT*ERIP Ericsson Ring Signal Playback CommandRefer to the AT*ERIN command for the sound type parameter AT*ERIP=? 16 AT*ESOM Ericsson Settings Own Melody 15 AT*ESMA Ericsson Set Message Alert Sound Melody 1 4. Default setting AT*EXVC? 17 AT*EXVCAT*EXVC=? ATM? 18 ATM Monitor Speaker ControlModem and is only included for compatibility ATM=? 152 AT+CBST? Select Bearer Service TypeData CSD/HSCSD AT+CBST=? Name Description +CRLP Radio Link ProtocolAT+CRLP? AT+CRLP=? AT+CRLP? +CRLP 61,61,48,6,0 +CRLP 120,120,48,6,2,3 +CGACT? Data GprsAT+CGACT PDP Context Activate or Deactivate +CGACT=? +CGATT? AT+CGATT Gprs Attach or Detach+CGATT=? AT+CGDATA Enter Data State +CGDATA=? CRLF+CGDCONT AT+CGDCONT Define PDP Context+CGDCONT? +CGDCONT=? APN +CGEREP? AT+CGEREP Gprs Event Reporting+CGEREP=? CRLF+CGPAD AT+CGPADDR Show PDP Address+CGPADDR +CGPADDR=? +CGQMIN? AT+CGQMIN Quality of Service Profile Minimum Acceptable+CGQMIN=? 165 +CGQREQ? AT+CGQREQ Quality of Service Profile Requested+CGQREQ=? 167 GM47/GM48 INTEGRATOR’S Manual AT+CGREG? AT+CGREG Gprs Network Registration StatusAT+CGREG=? +CGSMS? 10 AT+CGSMS Select Service for MO SMS Messages+CGSMS=? AT+CHSC Data HscsdHscsd Current Call Parameters AT+CHSC=? AT+CHSD Hscsd Device ParametersAT+CHSD=? AT+CHSN? Hscsd Non Transparent Call ConfigurationAT+CHSN=? AT+CHSR? Hscsd Parameters ReportAT+CHSR=? AT+CHSU? Hscsd Automatic User Initiated UpgradingItermediate Result Codes +CHSR rx,tx,aiur,coding AT+CHSU=? 176 Uart AT*EENMEA Nmea GPS Mode on UART2GPS Interoperability AT*EENMEA? AT*E2NMPR? AT*E2NMPR Ericsson M2M Set Nmea GPS Port RateAT*E2NMPR=? *E2NMPR=0-10 Port rate currently set AT*E2NMPR=? Set GPS/NMEA port rate to 4800 baud 180 E2FAX= FaxAT*E2FAX Ericsson M2M Fax Comm. Baud Rate Modification AT*E2FAX? E2FAX Current default setting is 19200 baud Low Level Fax CommandsSets default RS232 setting to 9600 baud Identification 10.2 AT&F Set to Factory Defined ConfigurationSupports AT commands, it returns an OK final result code 10.1 AT 10.5 AT+CGMI Read MS Manufacturer Identification 10.4 AT List all Supported AT CommandsLists all the commands supported by the MS 10.6 AT+CGMM Read MS Model Identification About the software version 10.7 AT+CGMR Read MS Revision IdentificationBVGM47 AT+CGMR 10.8 AT+CGSN Read MS Product Serial Number Identification 10.9 AT+GMI 10.11 AT+GMR Read Revision Identification 10.10 AT+GMM Read Model IdentificationR2A009prgCXC1122112 CXC1122112 Configuration Settings on Channel 0 &C10.12 ATI Identification Information +CGACT 1,0 189 190 11.1 AT*E2IO Ericsson M2M Input/Output Read/Write Input/OutputAT*E2IO=? 192 Read Writing in an Output Unsolicited Result Codes *E2IO source, io, valReading an I/O False Configuring an I/O Checking an I/O status Triggering an Input Checking an Input Trigger 12.4 AT&S Circuit 107 DSR Response Interface12.3 AT&D Circuit 108 DTR Response Determines the behaviour of the carrier detect Determines the behaviour of the data set ready signal 12.5 AT+WS46 Mode Selection12.6 ATE Command Echo Phone 12.7 ATV DCE Response Format List of result codes 12.8 ATZ Reset to Default Configuration 12.9 AT+CMUX Switch to 07.10 Multiplex Protocol 201 12.11 AT+ICF Cable Interface Character Format 12.10 AT+CRES Restore SMS SettingsParameters, cannot be restored Result code, if this is not automatically determined Not AT+IFC? 12.12 AT+IFC DTE-DCE Local Flow Control+ICF 3,3 AT+IFC=? Specifies whether or not the extended-format +ILRRrate 12.14 AT+IPR Cable Interface Port Command12.13 AT+ILRR Cable Interface Local Rate Reporting Transmitted AT*E2SPI? 12.15 AT*E2SPI Serial Peripheral InterfaceE2SPI AT*E2SPI=? AT*E2SPI=0 AT*E2ESC? 12.16 AT*E2ESC M2M Escape Sequence Guard TimeAT*E2ESC=? 208 AT*E2CD? Network13.1 AT*E2CD Ericsson M2M Cell Description AT*E2CD=? According to GSM 04.18 V8.6.0, the coding of the timing 13.2 AT*E2EMM Ericsson M2M Engineering Monitoring Mode AT*E2EMM=1 AT*E2EMM=7 Responses. Default value is 215 216 13.4 AT*EALS Ericsson Request ALS Status 13.3 AT*E2SPN M2M Service Provider IndicationSIM SIM 13.5 AT*ECSP Ericsson Customer Service ProfileAT*ECSP=? 13.6 AT*EPNR Ericsson Read SIM Preferred Network AT*EPNR=? Epnr 10,27801 13.7 AT*EPNW Ericsson Write SIM Preferred NetworkAT*EPNW=? AT*E2SSN=? 13.8 AT*E2SSN Ericsson M2M SIM Serial NumberAT*E2SSN? SSN AT*ESLN? Esln 13.9 AT*ESLN Ericsson Set Line NameSets the name tag for a selected line AT*ESLN=? Attached to the ME 13.10 AT+CIMI Subscriber Identification13.11 AT+CLCK 234157411545420 Baoc bar all outgoing calls AT+CNUM 13.12 AT+CNUM Subscriber Number+CPWD LF+CNUM AT+COLP? 13.13 AT+COLP Connected Line Identification PresentationUDI AT+COLP=? Disable AT+COPS? 13.14 AT+COPS Operator SelectionAT+COPS=? AT+CREG? 13.15 AT+CREG Network RegistrationAT+CREG=? AT*ECPI? 13.16 AT*ECPI Ciphering Indicator+CREG 0,1 AT*ECPI=? 231 AT*E2NBTS? 13.17 AT*E2NBTS Ericsson M2M Neighbour BTSAT*E2NBTS=? 233 234 14.1 AT*E2PBCS Ericsson M2M Phonebook Check Sum Phonebook14.2 AT*ESAG Ericsson Add to Group 14.3 AT*ESCG Ericsson Create Group AT*ESCG=? 14.4 AT*ESCN AT*ESCN=? 238 14.5 AT*ESDG Ericsson Delete Group 14.6 AT*ESDI Ericsson Delete Group Item AT*ESGR 14.7 AT*ESGR Ericsson Group Read14.8 AT*EGIR Ericsson Group Item Read AT*ESGR=? AT*ESIL? 14.9 AT*ESIL Ericsson Silence CommandIs in silent mode, all sounds from the MS are prevented AT*ESIL=? AT*ESNU? 14.10 AT*ESNU Ericsson Settings NumberAT*ESNU=? +CPBF 14.11 AT+CPBF Phonebook Find14.12 AT+CPBR Phonebook Read +CPBF=? 244 AT+CPBS? 14.13 AT+CPBS Phone StorageAT+CPBS=? 14.14 AT+CPBW Phonebook Write AT+CPBW=? 14.15 AT*ECAW Ericsson Callers Allowed Write AT*ECAW=? AT*ECAR= 14.16 AT*ECAR Ericsson Callers Allowed ReadCluid AT*ECAR=? If listing fails in a ME +CME Error err is returned 250 15.1 AT+CPIN PIN Control Short Message Services Point to Point15.2 AT+CGSMS Select Service for MO SMS Messages 15.3 AT+CPMS Preferred Message Storage +CPMS ME,SM,ME,SM,ME,SM +CPMS ME,0,40,SM,1,15,ME,0,40 AT+CSCA? 15.4 AT+CSCA Service Centre AddressAT+CPMS=sm,sm,sm +CPMS 1,15,1,15,1,15 AT+CSCA=? AT+CMGF? 15.5 AT+CMGF Message Format+CSCA 44385016005,145 AT+CMGF=? 15.6 AT+CMGW Write Message to Memory AT+CMGW=? Text Mode ESC 15.7 AT+CMGS Send Message ESC ErrorAT+CMGS=? 258 259 AT+CSMP=17,167,0,0 AT+CMGS=+447747008670 Test SMS +CMGS 15.8 AT+CMSS Send From StorageAT+CMSS=? Command is +CMGC 15.9 AT+CMGC Send CommandAT+CMGC=? Text is entered ctrl-Z/ESC AT+CNMI? 15.10 AT+CNMI New Message Indications to TEAT+CNMI=? Unsolicited Result codes 266 +CBM AT+CMGR= 15.11 AT+CMGR Read MessageDisplay cell broadcast messages AT+CNMI=3,0,2,0,0 AT+CMGR=? 269 +CMGR Successful and CBM storage 271 272 Compressed text not supported +CMGL 15.12 AT+CMGL List MessageR1A100 CXC1122112 AT+CMGL=? 275 AT+CMGL AT+CMGL? 277 278 279 AT+CMGD=? 15.14 AT+CSDH Show Text Mode Parameters15.13 AT+CMGD Delete Message AT+CSDH? AT+CSMP? 15.15 AT+CSMP Set Text Mode ParametersAT+CSMP=? 15.16 AT+CSCS Select Character Set AT+CSMS? 15.17 AT+CSMS Select Message Service+CSMS AT+CSMS=? SMS Error 15.18 AT*E2SMSRIRing indicator for SMSAT*E2SMSRI=? RI is disabled for incoming SMS messages. Default value 286 16.2 AT+CSCB Select Cell Broadcast Message Type Short Message Services Cell Broadcast16.1 AT+CNMI New Message Indications to TE See 15.10, AT+CNMI New Message Indications to TE 288 AT*E2STKS? SIM Application ToolkitSTK AT*E2STKS=? 17.3 AT*E2STKD M2M STK Display Text Display Text ErrorAT*E2STKD=? GET Inkey 17.4 AT*E2STKG M2M STK Get InkeyValues follow GSM 11.14 standard AT*E2STKG=? 292 Input 17.5 AT*E2STKI M2M STK Get InputAT*E2STKI=? Answer Description 295 17.6 AT*E2STKL M2M STK Select Item Select Item ErrorAT*E2STKL=? Maximum length is fixed Maximum length is fixed UP Menu Error 17.7 AT*E2STKM M2M STK Set Up MenuAT*E2STKM=? GSM default alphabet AT*E2SKTN command. The ME answers with OK, or Error 17.9 AT*E2STKC M2M STK Set Up CallParameters have no default values Command No response from user. It corresponds to ‘12’ no response E2STKE coding, textlength , alphaid 17.10 *E2STKE STK Send Short MessageUnsolicited Result Code ME passes the alphaid within Send Short Message 17.11 *E2STKP STK Send SS 17.12 *E2STKU STK Send Ussd 17.13 *E2STKR STK Refresh 17.14 AT*E2STKTO SIM Application Toolkit SettingsE2STKR indicator Unsolicited Result Code Unsolicited result code *E2STKTO command 18.1 AT+CPIN PIN Control Supplementary Services18.2 AT+CACM Accumulated Call Meter AT+CAMM? 18.3 AT+CAMM Accumulated Call Meter MaximumAT+CAMM=? AT+CAOC? 18.4 AT+CAOC Advice of ChargeAT+CAOC=? AT+CPUC=? 18.5 AT+CPUC Price Per Unit and Currency TableAT+CPUC? SEK Edif 18.6 AT*EDIF Ericsson Divert FunctionWith the unsolicited result code *EDIF AT*EDIF? AT*EIPS=ID 18.7 AT*EIPS Identity Presentation SetUnsolicited Result Codes *ELIPalpha tag *EOLPalpha tag AT*EIPS? AT*ELIN? 18.9 AT*E2SSD M2M Supplementary Service Dispatch18.8 AT*ELIN Ericsson Line Set AT*ELIN=? 18.10 AT*E2SSI M2M Supplementary Service Indications Refer to GSM 02.30 for Public MMI services and codes Ssinumbererr SsisimerrorSsinetworkproblem Ssicallbarred Bsallpadaccesscaservices BearerserviceTeleservice Multiparty Tsallteleservicesexceptsms BsallsynchronousservicesTsalldataservices BS12KBITUNRESTRICTEDDIGITAL Ssstatusprovisioned TemporarydefaultrestrictedTemporarydefaultallowed Ssstatuspra +CCFC 18.11 AT+CCFC Call Forwarding number and ConditionsAT+CCFC=? Default value if ‘+’ is in sca AT+CCWA? 18.12 AT+CCWA Call WaitingAT+CCWA=? Default value is Unsolicited Result Codes +CCWA number, type, class AT+CCWA=? +CCWA 18.13 AT+CHLD Call Hold and MultipartyAT+CHLD=? Integer type equals to numbers entered before Send AT+CLIP? 18.14 AT+CLIP Calling Line IdentificationAT+CLIP=? +CLIP 07747008670,129,,,Matt L,0 18.15 AT+CLIR Calling Line Identification Restriction+CLIP number,type AT+CLIR? Presentation indicator is used according to AT+CSSN? 18.16 AT+CSSN Supplementary Service NotificationAT+CSSN=? Enable the +CSSU result code presentation status in the TA AT+CUSD? 18.17 AT+CUSD Unstructured Supplementary Service DataAT+CUSD=? Different alternatives are shown below +CUSD0 OK +CUSD0,ALARM AT+CUSD=1,*#100# +CUSD 0,07787154042 Alphabetical Listing of AT Commands AT*E2STKN AT*E2STKLAT*E2STKM AT*E2STKS AT*ESDG AT*ESCGAT*ESCN AT*ESDI AT+CGSMS AT+CGQREQAT+CGREG AT+CHLD AT+CPBR AT+CPASAT+CPBF AT+CPBS AT+WS46 AT+IPRAT+VTS ATA