Specifications

ManualsBrandsRhydo ManualsComputer equipmentSIM 900 SIM 900 -TTL UART

AT Commands Set

SIM900_ATC_V1.02

Summary of content (201 pages)

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AT Commands Set SIM900_ATC_V1.
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SIM900 AT Commands Set Document Title: SIM900 AT Commands Set Version: 1.02 Date: 2010-7-23 Status: Release Document Control ID: SIM900_ATC_V1.02 General Notes SIMCOM offers this information as a service to its customers, to support application and engineering efforts that use the products designed by SIMCOM. The information provided is based upon requirements specifically provided to SIMCOM by the customers.
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SIM900 AT Commands Set Version History Version Chapter What is new V1.00 New version Created on the basis of SIM900 AT Test Result V1.01 3.2.50 AT+CALS 6.2.27 AT+CBTE 6.2.30 AT+STTONE 8.2.21 AT+CIPDPDP 8.2.25AT+CIPUDPMODE 6.2.45 AT+SGPIO 6.2.46 AT+SPWM 6.2.47 AT+ECHO Add new command Add new command Add new command Add new command Add new command Add new command Add new command Add new command V1.02 3.2.16 AT+CLCC 3.2.30 AT+CR Add write command Add parameter GPRS SIM900_ATC_V1.01 3 23.06.
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SIM900 AT Commands Set Contents Version History .................................................................................................................................3 1 Introduction..................................................................................................................................10 1.1 Scope of the document ..........................................................................................................10 1.2 Related documents ............................
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SIM900 AT Commands Set 2.2.23 ATS10 Set Disconnect Delay after Indicating the Absence of Data Carrier..............31 2.2.24 ATT Select Tone Dialing ..............................................................................................31 2.2.25 ATV TA Response Format .......................................................................................31 2.2.26 ATX Set CONNECT Result Code Format and Monitor Call Progress .....................33 2.2.27 ATZ Reset Default Configuration ..............
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SIM900 AT Commands Set 3.2.22 AT+COPS Operator Selection...................................................................................68 3.2.23 AT+CPAS Phone Activity Status...............................................................................69 3.2.24 AT+CPBF Find Phonebook Entries...........................................................................69 3.2.25 AT+CPBR Read Current Phonebook Entries ............................................................70 3.2.
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SIM900 AT Commands Set 4.2.5 AT+CMGS Send SMS Message................................................................................106 4.2.6 AT+CMGW Write SMS Message to Memory ..........................................................107 4.2.7 AT+CMSS Send SMS Message from Storage ..........................................................108 4.2.8 AT+CNMI New SMS Message Indications ..............................................................109 4.2.9 AT+CPMS Preferred SMS Message Storage ............
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SIM900 AT Commands Set 6.2.28 AT+CSDT Switch On or Off Detecting SIM Card.................................................142 6.2.29 AT+CMGDA Delete All SMS................................................................................142 6.2.30 AT+STTONE SIM Toolkit Play Tone Command ..................................................143 6.2.31 AT+SIMTONE Generate Specifically Tone...........................................................144 6.2.
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SIM900 AT Commands Set 8.2.8 AT+CLPORT Set Local Port .....................................................................................175 8.2.9 AT+CSTT START Task and Set APN、USER NAME、PASSWORD ..................176 8.2.10 AT+CIICR Bring Up Wireless Connection with GPRS or CSD .............................176 8.2.11 AT+CIFSR Get Local IP Address............................................................................177 8.2.12 AT+CIPSTATUS Query Current Connection Status ...........................
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SIM900 AT Commands Set 1 Introduction 1.1 Scope of the document This document presents the AT Command Set for SIMCOM SIM900 series cellular engine. 1.2 Related documents You can visit the SIMCOM Website using the following link: http://www.sim.com SIM900_ATC_V1.01 10 23.06.
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SIM900 AT Commands Set 1.3 Conventions and abbreviations In this document, the GSM engines are referred to as following term: 1) ME (Mobile Equipment); 2) MS (Mobile Station); 3) TA (Terminal Adapter); 4) DCE (Data Communication Equipment) or facsimile DCE (FAX modem, FAX board); In application, controlling device controls the GSM engine by sending AT Command via its serial interface.
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SIM900 AT Commands Set 1.4.2 S Parameter syntax These AT commands have the format of “ATS=”, where “” is the index of the S register to set, and “”is the value to assign to it. “” is optional; if it is missing, then a default value is assigned. 1.4.
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SIM900 AT Commands Set • UCS2 • HEX • IRA • PCCP • PCDN • 8859-1 The character set can be set and interrogated using the “AT+CSCS” Command (GSM 07.07). The character set is defined in GSM specification 07.05. The character set affects transmission and reception of SMS and SMS Cell Broadcast messages, the entry and display of phone book entries text field and SIM Application Toolkit alpha strings. 1.6 Flow control Flow control is very important for correct communication between the GSM engine and DTE.
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SIM900 AT Commands Set NOTE: Software Flow control should not be used for data calls where binary data will be transmitted or received (e.g. TCP/IP) as the DTE interface may interpret binary data as flow control characters. 1.6.2 Hardware flow control (RTS/CTS flow control) Hardware flow control achieves the data flow control by controlling the RTS/CTS line. When the data transfer should be suspended, the CTS line is set inactive until the transfer from the receiving buffer has completed.
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SIM900 AT Commands Set 2 AT Commands According to V.25TER These AT Commands are designed according to the ITU-T (International Telecommunication Union, Telecommunication sector) V.25ter document. 2.1 Overview of AT Commands According to V.
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SIM900 AT Commands Set ATV TA RESPONSE FORMAT ATX SET CONNECT RESULT CODE FORMAT AND MONITOR CALL PROGRESS ATZ SET ALL CURRENT PARAMETERS TO USER DEFINED PROFILE AT&C SET DCD FUNCTION MODE AT&D SET DTR FUNCTION MODE AT&F SET ALL CURRENT DEFAULTS AT&V DISPLAY CURRENT CONFIGURATION AT&W STORE CURRENT PARAMETER TO USER DEFINED PROFILE AT+GCAP REQUEST COMPLETE TA CAPABILITIES LIST AT+GMI REQUEST MANUFACTURER IDENTIFICATION AT+GMM REQUEST TA MODEL IDENTIFICATION AT+GMR REQUEST TA REVISION
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SIM900 AT Commands Set Execution Command ATA Response TA sends off-hook to the remote station. Note1: Any additional commands on the same Command line are ignored. Note2: This Command may be aborted generally by receiving a character during execution. The aborting is not possible during some states of connection establishment such as handshaking. Response in case of data call, if successfully connected CONNECT TA switches to data mode.
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SIM900 AT Commands Set NO ANSWER If connection successful and non-voice call. CONNECT TA switches to data mode. Note: output only if ATX parameter setting with the >0 When TA returns to Command mode after call release OK If connection successful and voice call OK Parameters string of dialing digits and optionally V.25ter modifiers dialing digits: 0-9, * , #, +, A, B, C Following V.
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SIM900 AT Commands Set the call is established. The setting is controlled by AT+COLP. Factory default is AT+COLP=0, this cause the TA returns “OK” immediately after dialing was completed, otherwise TA will returns “OK”, “BUSY”, “NO DIAL TONE”, “NO CARRIER”. Using ATD during an active voice call: z When a user originates a second voice call while there is already an active voice call, the first call will be automatically put on hold.
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SIM900 AT Commands Set Execution Command ATD>[ ][ ][;] Response This Command can be used to dial a phone number from current phonebook memory. Note: This Command may be aborted generally by receiving an ATH Command or a character during execution. The aborting is not possible during some states of connection establishment such as handshaking.
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SIM900 AT Commands Set Suppression (allow CLI presentation) G Control the CUG supplementary service information for this call CUG Not supported Control the CUG supplementary service information for this call CUG Not supported Only required to set up voice call , return to Command state g <;> Reference V.25ter Note z Parameter “I” and “i” only if no *# code is within the dial string z *# codes sent with ATD are treated as voice calls.
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SIM900 AT Commands Set Execution Command ATD>[][][;] Response This Command make the TA attempts to set up an outgoing call to stored number. All available memories are searched for the entry . Note: This Command may be aborted generally by receiving an ATH Command or a character during execution. The aborting is not possible during some states of connection establishment such as handshaking.
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SIM900 AT Commands Set Parameters <;> Reference V.25ter string type(string should be included in quotation marks) value (“x“), which should equal to an alphanumeric field in at least one phone book entry in the searched memories. str formatted as current TE character set specified by +CSCS.
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SIM900 AT Commands Set If the remote station does not answer NO ANSWER If connection successful and non-voice call. CONNECT TA switches to data mode. Note: output only if ATX parameter setting with the >0 When TA returns to Command mode after call release OK If successfully connected and voice call OK Reference V.25ter 2.2.7 ATE ATE Note z See ATX Command for setting result code and call monitoring parameters.
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SIM900 AT Commands Set Parameter 0 1 2 3 4 5 Reference V.25ter 2.2.9 ATI ATI Disconnect ALL calls on THE channel the command is Requested. All active or waiting calls, CS data calls, GPRS call of the channel will be disconnected Disconnect all calls on ALL connected channels. All active or waiting calls, CSD calls, GPRS call will be disconnected.(clean up of all calls of the ME).
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SIM900 AT Commands Set Parameter ATL Reference V.25ter 2.2.11 ATM ATM 0..9 volume Note No effect in GSM Monitor Speaker Mode Monitor Speaker Mode Execution Command ATM Reference V.25ter Response OK Parameter 0..9 mode Note No effect in GSM 2.2.
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SIM900 AT Commands Set Execution Command ATO[n] Response TA resumes the connection and switches back from Command mode to data mode. CONNECT If connection is not successfully resumed NO CARRIER else TA returns to data mode from Command mode CONNECT Note: only if parameter setting ATX>0 Parameter Reference V.25ter 0 switch from Command mode to data mode Note 2.2.14 ATP Select Pulse Dialing ATP Select Pulse Dialing Execution Command ATP Response OK Reference V.
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SIM900 AT Commands Set 2.2.16 ATS0 Set Number of Rings before Automatically Answering the Call ATS0 Set Number of Rings before Automatically Answering the Call Read Command ATS0? Response OK Write Command ATS0= Response This parameter setting determines the number of rings before auto-answer. OK ERROR Parameter Reference V.
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SIM900 AT Commands Set OK Write Command ATS4= Response This parameter setting determines the character generated by the TA for result code and information text. OK ERROR Parameter 10 Reference V.25ter 2.2.19 ATS5 ATS5 Note Default 10 = LF. response formatting character It only supports default value.
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SIM900 AT Commands Set Write Command ATS6= Response OK ERROR Parameter 0..999 Reference V.25ter Time Note No effect in GSM 2.2.21 ATS7 Set Number of Seconds to Wait for Connection Completion ATS7 Set Number of Seconds to Wait for Connection Completion Read Command ATS7? Response OK Write Command ATS7= Response This parameter setting determines the amount of time to wait for the connection completion in case of answering or originating a call.
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SIM900 AT Commands Set Parameter 0-225 The value of this register determines how long the modem should pause when it sees a comma in the dialling string. Reference V.25ter 2.2.
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SIM900 AT Commands Set Execution Command ATV Response This parameter setting determines the contents of the header and trailer transmitted with result codes and information responses.
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SIM900 AT Commands Set 2.2.26 ATX ATX Set CONNECT Result Code Format and Monitor Call Progress Set CONNECT Result Code Format and Monitor Call Progress Execution Command ATX Response This parameter setting determines whether or not the TA detected the presence of dial tone and busy signal and whether or not TA transmits particular result codes OK ERROR Parameter Reference V.25ter 2.2.
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SIM900 AT Commands Set ATX 0x04 AT&C 0x01 AT&D 0x01 AT+IFC 0x00 AT+IFC 0x00 AT+FCLASS 0x00 ATS0 0x00 ATS3 0x00 ATS4 0x0D ATS5 0x0A ATS7 0x08 ATS8 0x32 ATS10 0x0E 2.2.
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SIM900 AT Commands Set Parameter 0 1 2 Reference V.25ter TA ignores status on DTR ON->OFF on DTR: Change to Command mode with remaining the connected call ON->OFF on DTR: Disconnect call, change to Command mode. During state DTR = OFF is auto-answer off. Note 2.2.30 AT&F Factory Defined Configuration AT&F Factory Defined Configuration Execution Command AT&F[] Response TA sets all current parameters to the manufacturer defined profile. OK Parameter 0 Reference V.
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SIM900 AT Commands Set AT+CRLP 0x06 AT+CPBS 0x53 0x4D 0x00 AT+CSMP 0x11 AT+CSMP 0x00 AT+CSMP 0x18 AT+CSMP 0x00 AT+CSMP 0x00 AT+CSMP 0x11 AT+CSMP 0x00 AT+CSMP 0x18 AT+CSMP 0x00 AT+CSMP 0x00 AT+CSMP 0x11 AT+CSMP 0x00 AT+CSMP 0x18 AT+CSMP 0x00 AT+CSMP 0x00 AT+CSMP 0x00..
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SIM900 AT Commands Set 2.2.31 AT&V Display Current Configuration AT&V Display Current Configuration Execution Command AT&V[] Response TA returns the current parameter setting. OK ERROR Parameter 0 Reference V.25ter Responses in numeric format Note 2.2.32 AT&W Store Active profile AT&W Store Active profile Execution Command AT&W[] Response TA stores the current parameter setting in the user defined profile. OK ERROR Parameter 0 1 Reference V.
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SIM900 AT Commands Set ATS4 Y ATS5 Y ATS7 Y ATS8 Y ATS10 Y 2.2.33 AT+GCAP Request Complete TA Capabilities List AT+GCAP Request Complete TA Capabilities List Execution Command AT+GCAP Response TA reports a list of additional capabilities. +GCAP: s OK Parameter Reference V.25ter GSM function is supported FAX function is supported Note The command can be executed only when the SIM card is present. 2.2.
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SIM900 AT Commands Set Parameter Execution Command AT+GMM TA reports one or more lines of information text which permit the user to identify the specific model of device. SIMCOM_SIM900 OK Parameter Reference V.25ter Note 2.2.
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SIM900 AT Commands Set Parameter