Data Sheet

Smart Machine Smart Decision
Contents
Version History.........................................................................................14
1 Introduction............................................................................................21
1.1 Scope of the document .......................................................................................21
1.2 Related documents..............................................................................................21
1.3 Conventions and abbreviations ..........................................................................21
1.4 AT Command syntax ..........................................................................................21
1.4.1 Basic syntax ...................................................................................................................22
1.4.2 S Parameter syntax.........................................................................................................22
1.4.3 Extended Syntax.............................................................................................................22
1.4.4 Combining AT commands on the same Command line.................................................22
1.4.5 Entering successive AT commands on separate lines.....................................................23
1.5 Supported character sets.....................................................................................23
1.6 Flow control .......................................................................................................23
1.6.1 Software flow control (XON/XOFF flow control).........................................................23
1.6.2 Hardware flow control (RTS/CTS flow control)............................................................24
1.7 Definitions ..........................................................................................................24
1.7.1 Parameter Saving Mode .................................................................................................24
1.7.2 Max Response Time.......................................................................................................25
2 AT Commands According to V.25TER ................................................26
2.1 Overview of AT Commands According to V.25TER .........................................26
2.2 Detailed Description of AT Commands According to V.25TER ........................27
2.2.1 A/ Re-issues the Last Command Given.......................................................................27
2.2.2 ATA Answer an Incoming Call....................................................................................27
2.2.3 ATD Mobile Originated Call to Dial A Number..........................................................28
2.2.4 ATD><n> Originate Call to Phone Number in Current Memory................................30
2.2.5 ATD><str> Originate Call to Phone Number in Memory Which Corresponds to
Field <str>...............................................................................................................................31
2.2.6 ATDL Redial Last Telephone Number Used...............................................................33
2.2.7 ATE Set Command Echo Mode ..................................................................................34
2.2.8 ATH Disconnect Existing Connection.........................................................................34
2.2.9 ATI Display Product Identification Information .........................................................34
2.2.10 ATL Set Monitor speaker loudness............................................................................35
2.2.11 ATM Set Monitor Speaker Mode ..............................................................................35
2.2.12 +++ Switch from Data Mode or PPP Online Mode to Command Mode ..................35
2.2.13 ATO Switch from Command Mode to Data Mode....................................................36
2.2.14 ATP Select Pulse Dialling..........................................................................................36
2.2.15 ATQ Set Result Code Presentation Mode..................................................................37
2.2.16 ATS0 Set Number of Rings before Automatically Answering the Call.....................37
2.2.17 ATS3 Set Command Line Termination Character .....................................................38
SIM800 Series_AT Command Manual_V1.05 3 2014-07-31