User Guide

Chapter 1 – AT Commands, S-Registers and Result Codes
Multi-Tech Systems, Inc. SocketModem MT5634SMIxx Reference Guide (S000263C) 6
AT Command Summary
Organization of AT Commands on the following pages: 1st, by the initial command character (&, +, %)
2nd, alphabetized by the second command character (Except for listing of AT).
Command Description
AT
Attention Code
A
Answer
A/
Repeat Last Command
Bn
Communication Standard Setting
Ds
Dial
DS=y
Dial Stored Telephone Number
En
Echo Command Mode Characters
Fn
Echo Online Data Characters
Hn
Hook Control
In
Information Request
Mn
Monitor Speaker Mode
Nn
Modulation Handshake
On
Return Online to Data Mode
P
Pulse Dialing
Qn
Result Codes Enable/Disable
Sr=n
Set Register Value
Sr?
Read Register Value
T
Tone Dialing
Vn
Result Code Format
Wn
Result Code Options
Xn
Result Code Selection
Zn
Modem Reset
&Cn
Data Carrier Detect (DCD) Control
&Dn
Data Terminal Ready (DTR) Control
&En
XON/XOFF Pass-Through
&Fn
Load Factory Settings
&Gn
V.22bis Guard Tone Control
&Kn
Flow Control Selection
&Ln
Leased Line Operation
&Pn
Pulse Dial Make-to-Break Ratio Selection
&Qn
Asynchronous Communications Mode
&Sn
Data Set Ready (DSR) Control
&Tn
Loopback Test (V.54 Test) Commands
&V
Display Current Settings
&Wn
Store Current Configuration
&Zy=x
Store Dialing Command
\An
Select Maximum MNP Block Size
\Bn
Transmit Break
\Kn
Break Control
\Nn
Error Correction Mode Selection
\Qn
Flow Control Selection
\Tn
Inactivity Timer
\Vn
Protocol Result Code
-Cn
Data Calling Tone
%A
Adaptive Answer Result Code Enable
%B
View Numbers in Blacklist
%Cn
Data Compression Control
%DCn
AT Command Control
%En
Fallback and Fall Forward Control
%Hn
Direct Connect Enable
%Rn
Cisco Configuration
%Sn
Command Speed Response
$EBn
Asynchronous Word Length