Specifications

AT Command Set
TC3X_ATC_01_V04.00 Page 3 of 204 29.05.2002
Contents
0 Version History .............................................................................................7
1 Introduction.................................................................................................10
1.1 Scope of the document ...........................................................................................................10
1.2 Supported product versions and related documents ..............................................................10
1.3 Conventions ............................................................................................................................11
1.4 AT command syntax ...............................................................................................................11
1.4.1 Using parameters....................................................................................................................11
1.4.2 Combining AT commands on the same command line ..........................................................12
1.4.3 Entering successive AT commands on separate lines ...........................................................12
1.5 Supported character sets ........................................................................................................13
1.6 Flow control.............................................................................................................................14
1.6.1 Software flow control (XON/OFF flow control) ........................................................................14
1.6.2 Hardware flow control (RTS/CTS flow control) .......................................................................14
2 Standard V.25ter AT Commands ...............................................................15
2.1 A/ Repeat previous command line .........................................................................................15
2.2 +++ Switch from data mode to command mode....................................................................15
2.3 AT\Qn Flowcontrol .................................................................................................................16
2.4 ATA Answer a call..................................................................................................................16
2.5 ATD Mobile originated call to dial a number ..........................................................................17
2.6 ATD><mem><n> Originate call to phone number <n> in memory <mem> ..........................18
2.7 ATD><n> Originate call to phone number selected from active memory..............................20
2.8 ATD><str> Originate call to phone number in memory with corresponding field ..................21
2.9 ATDI Mobile originated call to dialable ISDN number <n> ....................................................22
2.10 ATDL Redial last telephone number used .............................................................................23
2.11 ATE Enable command echo ..................................................................................................24
2.12 ATH Disconnect existing connection .....................................................................................24
2.13 ATI Display product identification information........................................................................25
2.14 ATI[value] Display additional identification information..........................................................25
2.15 ATL Set monitor speaker loudness........................................................................................26
2.16 ATM Set monitor speaker mode ............................................................................................26
2.17 ATO Switch from command mode to data mode...................................................................26
2.18 ATQ Set result code presentation mode................................................................................27
2.19 ATP Select pulse dialling .......................................................................................................27
2.20 ATS0 Set number of rings before automatically answering the call ......................................27
2.21 ATS2 Escape code sequence................................................................................................28
2.22 ATS3 Write command line termination character ..................................................................28
2.23 ATS4 Set response formatting character...............................................................................28
2.24 ATS5 Write command line editing character..........................................................................29
2.25 ATS6 Set pause before blind dialling.....................................................................................29
2.26 ATS7 Set number of seconds to wait for connection completion ..........................................30
2.27 ATS8 Set number of seconds to wait for comma dial modifier..............................................30
2.28 ATS10 Set disconnect delay after indicating the absence of data carrier .............................31
2.29 ATS18 Extended error report.................................................................................................31
2.30 ATT Select tone dialling .........................................................................................................31
2.31 ATV Set result code format mode..........................................................................................32
2.32 ATX Set CONNECT result code format and call monitoring..................................................32
2.33 ATZ Set all current parameters to user defined profile ..........................................................33
2.34 AT&C Set circuit Data Carrier Detect (DCD) function mode..................................................33
2.35 AT&D Set circuit Data Terminal Ready (DTR) function mode...............................................34
2.36 AT&F Set all current parameters to manufacturer defaults ...................................................34
2.37 AT&S Set circuit Data Set Ready (DSR) function mode........................................................35
2.38 AT&V Display current configuration .......................................................................................36