Specifications

AT Command Set Reference
Ver. 1.00
GSM1308AT001 Page 425 Ver. 1.00 – 10/29/2008
Appendix C – Default AT Values
ATE Enable Command Echo
Default Value: 1
Default Value Meaning: Echo on.
ATQ Result Code Suppression
Default Value: 0
Default Value Meaning: DCE transmits result codes.
ATV Set Result Code Format Mode
Default Value: 1
Default Value Meaning: Information response:
<CR><LF><text><CR><LF>
ATX Set ATD Call Result Code Selection and Call Progress Monitoring Control
Default Value: 0
Default Value Meaning: Dial tone and busy detection are disabled.
AT&C Set circuit Data Carrier Detect (DCD) function mode
Default Value: 1
Default Value Meaning: DCD matches the state of the remote modem’s
carrier.
AT&D Set Circuit Data Terminal Ready (DTR) Function Mode
Default Value: 0
Default Value Meaning: TA ignores status on DTR.
ATS0 Set Number of Rings Before Automatically Answering the Call
Default Value: 0
Default Value Meaning: Automatic answering is disabled.
ATS3 Write Command Line Termination Character
Default Value: 13
Default Value Meaning: Command line terminal character is ASCII 13.
ATS4 Set Response Formatting Character
Default Value: 10
Default Value Meaning: Response formatting character is ASCII 10.
ATS5 Write Command Line Editing Character
Default Value: 8
Default Value Meaning: Command line editing character is ASCII 8.