AT Command Set - Olitec

Contents0 Version History............................................................................................. 81 Introduction ................................................................................................ 111.1 Scope of the document.................................................................................................................111.2 Supported product versions and related documents ..................................................................121.3 Conventions ..................................................................................................................................131.4 AT command syntax.....................................................................................................................131.4.1 Using parameters .........................................................................................................................131.4.2 Combining AT commands on the same command line ..............................................................141.4.3 Entering successive AT commands on separate lines ...............................................................141.5 Supported character sets .............................................................................................................151.6 Flow control...................................................................................................................................161.6.1 Software flow control (XON/OFF flow control) ............................................................................161.6.2 Hardware flow control (RTS/CTS flow control)............................................................................162 Standard V.25ter AT Commands .............................................................. 172.1 A/ Repeat previous command line..............................................................................................172.2 +++ Switch from data mode or PPP online mode to command mode......................................172.3 AT\Qn Flow control......................................................................................................................182.4 ATA Answer a call .......................................................................................................................182.5 ATD Mobile originated call to dial a number...............................................................................192.6 ATD> Originate call to phone number in memory ..............................212.7 ATD> Originate call to phone number selected from active memory.................................232.8 ATD> Originate call to phone number in memory with corresponding field.....................242.9 ATDI Mobile originated call to dialable ISDN number ........................................................252.10 ATDL Redial last telephone number used..................................................................................262.11 ATE Enable command echo .......................................................................................................272.12 ATH Disconnect existing connection ..........................................................................................272.13 ATI Display product identification information ............................................................................282.14 ATI[value] Display additional identification information..............................................................282.15 ATL Set monitor speaker loudness.............................................................................................292.16 ATM Set monitor speaker mode .................................................................................................292.17 ATO Switch from command mode to data mode / PPP online mode .......................................292.18 ATQ Set result code presentation mode ....................................................................................302.19 ATP Select pulse dialling.............................................................................................................302.20 ATS0 Set number of rings before automatically answering the call..........................................302.21 ATS3 Write command line termination character.......................................................................312.22 ATS4 Set response formatting character ...................................................................................312.23 ATS5 Write command line editing character..............................................................................312.24 ATS6 Set pause before blind dialling..........................................................................................322.25 ATS7 Set number of seconds to wait for connection completion..............................................322.26 ATS8 Set number of seconds to wait for comma dial modifier..................................................322.27 ATS10 Set disconnect delay after indicating the absence of data carrier ................................332.28 ATS18 Extended error report......................................................................................................332.29 ATT Select tone dialling...............................................................................................................332.30 ATV Set result code format mode...............................................................................................342.31 ATX Set CONNECT result code format and call monitoring .....................................................342.32 ATZ Set all current parameters to user defined profile..............................................................352.33 AT&C Set circuit Data Carrier Detect (DCD) function mode .....................................................352.34 AT&D Set circuit Data Terminal Ready (DTR) function mode...................................................36Page 2 of 207