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Error! Reference source not found. User Guide
AT Commands
Most modems use the standard AT commands, as shown in the
following tables. Consult the manual for your modem to set
what AT commands it supports.
Basic AT Command Set
Command
<any key>
+++
ATA
ATBn
B0
B1
ATD
P
T
,
;
!
W
64
Description
Terminate current connection attempt
Escape sequence code, entered in data
state, wait for modem to return to com-
mand state
Force answer mode on-line
Handshake operation
Select ITU-T V.22 for 1200 bps commu-
nication
Select Bell 212A for 1200 bps communi-
cation
Dial number and options that follow
Pulse dial
Tone dial
Pause for a specified time
Return to command state after dialing
Hook flash, call transfer
Wait for second dial tone
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