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MultiModemBA User Guide
5.2 Summary of AT Commands
A wide variety of autodial operations and modem options can be controlled when the modem is in
Command Mode. Remember, nearly all commands begin with AT.
These commands are organized into several functional groups. An alphabetical summary of
commands is provided in Appendix D.
HOW TO COMMANDS
DIAL D Dial
A: or : Continuous Redial
$D DTR Dialing
$VD Voice/Data Dialing
N Dial a Stored Number
MODIFY DIALING P/T Pulse/Tone Dialing
PROCEDURES &P Set Pulse Dial Ratios
, Automatic Pauses in dialing
Y Long Space Disconnect
W Wait for New Dial Tone
; Return to Command Mode After Dial
Command
R Reverse Mode of Operation
! Flash On Hook
$ AT&T "Calling Card" Tones
@ Quiet Answer
MEMORIZE PHONE
NUMBERS D...N Store Phone Numbers
NN Number Linking
L List Numbers Stored in Memory
STORE MODEM &F Load Factory Defaults
CONFIGURATIONS &W Store Configuration & S-Register
AND DEFAULTS Parameters
Z Reset Modem
V Result Code Terse/Verbose
$SP UNIX/"Spoofing”
&M Synchronous/Asynchronous Mode Select
&X Synchronous Transmit Clock Select
CONFIGURE Q Result Codes Enable/Disable Response
COMMAND &Q Result Code Selection
RESPONSES E Echo Command Characters
V Result Code Terse/Verbose
X Result Code...Basic/Extended/Call Progress
CONDITION &G Guard Tones
PHONE LINE M Monitor Phone Line
&T Remote Digital Loop Signal
#T Enable/Disable Trellis Coded Modulation
B Bell/V.21 Tones
#F Fallback When On-Line
&CD Cleardown at Disconnect (2834 Series only)
#A Auto-Speed Detect