Multi-Tech Systems BL-Series 5.2 Summary of AT Commands

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MultiModemBL 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 (Not Active in BLK models)
$D DTR Dialing
$VD Voice/Data Dialing
NDial a Stored Number
MODIFY DIALING P/T Pulse/Tone Dialing
PROCEDURES &P Set Pulse Dial Ratios (Not Active in BLK models)
,Automatic Pauses in dialing
YLong Space Disconnect
WWait for New Dial Tone
;Return to Command Mode After Dial
Command
RReverse Mode of Operation
!Flash On Hook
$AT&T "Calling Card" Tones
@Quiet Answer
MEMORIZE PHONE
NUMBERS D...N Store Phone Numbers
NN Number Linking
LList Numbers Stored in Memory
STORE MODEM &F Load Factory Defaults
CONFIGURATIONS &W Store Configuration & S-Register
AND DEFAULTS Parameters
ZReset Modem
VResult 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
VResult Code Terse/Verbose
XResult Code...Basic/Extended/Call Progress
CONDITION &G Guard Tones (Not Active in BLK models)
PHONE LINE M Monitor Phone Line
&T Remote Digital Loop Signal
#T Enable/Disable Trellis Coded Modulation
BBell/V.21 Tones (Not Active in BLK models)
#F Fallback When On-Line
&CD Cleardown at Disconnect (2834 Series only)
#A Auto-Speed Detect