
Manual 7XV5655-0BB00
C53000-G1176-C175-3
Page 50 of 79
SIEMENS AG
After the three Escape characters have been entered, the modem switches to command
mode. There is, however, no transmission interrupt before a valid command line is
recognised.
Status: Online
Mode
Command: +++ [2-second pause]
Status: Command
Mode
Command: ATO
Status: Online
Mode
Quick Reference for AT Commands and Registers
This chart, sorted by topic, provides frequently used AT commands and registers that
enable you to modify the configuration of your Serial Modem.
Configuration
Commands
Registers
Default modem initialisation
AT&F
Connection setup (dialling) ATD
S37,
S102
Call accept, dial, hang up
ATA, ATD, ATH,
S0
Switch between command and on-line data
mode
+++, ATO
S2
Read out modem information
ATI, ATS, AT%V, AT&V
Store initialisations
AT&W
(Controls the effect of DTR)
(not applicable here)
AT&D S37
Controls modem responses
ATE, ATQ, ATV, AT&D
S37
Password configuration mode
and password protection
ATP, ATZ
S81, S82, S83
Call accept from valid IP address
ATR
S110 – S119