A Answer Sends a carrier to the phone line, if a modem is
calling a connection will be established.
A/ Repeat This will repeat the last AT command typed to
the modem. This command does NOT need to start
with an "AT".
Bn ITU/BELL B0 - ITU-T V.22 @ 1200bps & V.21 @ 300bps
B1 - Bell 212A @ 1200bps & Bell 103J @ 300bps
B2 - ITU-T V.23 send @ 75bps receive @ 1200bps
B3 - ITU-T V.22 send @ 1200bps receive @ 75bps
Cn Carrier C0 - Transmit carrier always off
Control C1 - Normal transmit carrier
D Dial Dial modifier, usually followed with a T or P to
indicate if tone or pulse will be used to dial
and then followed by the phone # to dial.
En Echo E0 - Disable echo in command mode
E1 - Enable echo in command mode
Fn Online F0 - Enabled online echo
Echo F1 - Disables online echo
Hn Hook H0 - Hangs up the telephone line
Control H1 - Picks up the telephone line
In Identify I0 - Reports product code
Checksum I1 - Reports modem chip firmware
Option I2 - Verifies ROM checksum
I3 - Reports chipset name
I4 - Reserved
I5 - Reserved for hardware configuration
I6 - Country code
I7 - Version of board manufacturer firmware
I8 - Features of modem firmware
I10 - Modem board configuration
I11 - Modem board configuration
I14 - SAFE (analog - digital) device
I20 - Chip manufacturer's silicon version
I21 - Chip manufacturer's firmware version
I22 - Chip manufacturer's name
I23 - Chip manufacturer's product model
Ln Volume L0 - Low speaker volume
L1 - Low speaker volume
L2 - Medium speaker volume
L3 - High speaker volume
Mn Speaker M0 - Modem speaker is always off
Control M1 - Speaker on until carrier is present
M2 - Speaker is always on
M3 - Speaker off during dialing, on until
the carrier is present.
Nn Data Rate N0 - Handshake only at DTE-to-modem data rate
Handshake N1 - Begins handshake DTE-to-modem rate, falls to
highest compatibility
On Go On-Line O0 - Returns modem to data mode
O1 - Retrains equalizer and returns to data mode
P Pulse Pulse dials, must be preceeded with ATD
Qn Results Q0 - Enables result codes
Q1 - Disabled result codes
Sn S-Register Selects an S-Register (Range: 0-37)
Sn=x Write to Writes to a S-Register (Range: n=0-37, S-Register
x=0-255)
Sn? Reads from Reads from an S-Register (Range: 0-37) S-Register
T Tone Tone dials, must be preceeded with ATD
Vn Result V0 - Numeric result codes
format V1 - Written result codes (verbose)
Wn Reponse W0 - DTE speed response codes
code W1 - DTE speed response codes
data W2 - DCE speed response codes
rate W3 - DTE speed response codes w/error correct & data compress
W4 - Reports protocol, data compress, and DTE data rate
Xn Result X0 - Disables busy and dial tone detection
type X1 - Disables busy and dial tone detection
X2 - Disables busy and dial tone detection
X3 - Disables busy and dial tone detection
X4 - Enables busy and dial tone detection
Yn Long space Y0 - Disables long space disconnect
disconnect Y1 - Enables long space disconnect
Zn Recall Z0 - Resets modem to stored profile 0
Profile Z1 - Resets modem to stored profile 1
&Cn Data &C0 - Ignore remote modem status, DCD always ON
carrier &C1 - DCD set according to remote modem status
detect
&Dn Data &D0 - In async mode, modem ignore DTR
terminal &D1 - Modem switches from data to command mode
ready when on-to-off transition of DTR occurs.
&D2 - When DTR switches off, modem goes on-hook
and disables auto-answer mode; when DTR
switches on, auto-answer is enabled.
&D3 - Turn off DTR re-initialize & resets values
except UART registers.
&F Factory Loads the factory settings of the modem
&Gn Guard tone &G0 - Disable guard tone
options &G1 - Enables 550-Hz guard tone
&G2 - Enables 1800-Hz guard tone
&J0 Auxiliary &J0 - Auxiliary relay never operated
relay &J1 - Activates auxiliary relay when modem is
control off the hook.
&Kn Serial flow &K0 - Disables flow control
control &K3 - Bi-directional hardware flow control
&K4 - XON/XOFF software flow control
&M0 Async Mode This modem will only support Asynchronus mode.
&Pn Dial pulse &P0 - Sets 10-pps pulse dial with 39%/61% make
ratio break ratio.
&P1 - Sets 10-pps pulse dial with 33%/67% make
break ratio.
&Q0 Async Mode This modem will only support Asynchronus mode.
&Sn Data Set &S0 - DSR always active
Ready &S1 - DSR active only during handshaking when the
carrier is lost.
&Tn Self test &T0 - Terminates a test in progress
&T1 - Initiates local analog loopback
&T3 - Initiates local digital playback
&T4 - Grants RDL requests from remote modem
&T5 - Denies RDL request from remote modem
&T6 - Initiates remote digital loopback
&T7 - Starts remote digital loopback with self test
&T8 - Initiates local analog loopback with self test
&Un Trellis &U0 - Enable Trellis coding with QAM as fallback
Coding &U1 - QAM modulation only
&Vn View Active &V0 - View stored profile 0
and stored &V1 - View stored profile 1
profiles &V2 - View relay and general purpose I/O status
&Wn Store &W0 - Store active configuration to profile 0
profile &W1 - Store active configuration to profile 1
&Yn Select &Y0 - Recall stored profile 0 on power up
profile &Y1 - Recall stored profile 1 on power up
&Zn=x Store phone &Z0=x - Where x=telephone #, stores in slot 0
number &Z1=x - Where x=telephone #, stores in slot 1
&Z2=x - Where x=telephone #, stores in slot 2
&Z3=x - Where x=telephone #, stores in slot 3
%En Auto %E0 - Disables auto retrain
retrain %E1 - Enables auto retrain
%Gn Rate %G0 - Disabled
Negotiation %G1 - Generate data modem calling tone
-Cn Data tone -C0 - Calling tone disabled
-C1 - 1300-Hz calling tone enabled
-C2 - V.8 calling tone and 1300-Hz calling tone
%An Auto %A13 (default) Range 0-127
reliable
fallback
character
%Cn MNP 5 %C0 - No Compression
%C1 - Enables MNP 5 data compression
\An MNP block \A0 Maximum 64 characters
size \A1 Maximum 128 characters
\A2 Maximum 192 characters
\A3 Maximum 256 characters
\Bn Break Transmits a break through the modem
\Cn Auto \C0 - No data buffering
reliable \C1 - Four second buffer until 200 characters in
buffers the buffer or detection of a SYN character
\C2 - No buffering; connects to a non-V.42 modem
\Gn modem flow \G0 - Disabled modem port flow control
control \G1 - Sets modem port flow control to XON/XOFF
\Jn Bps rate \J0 - Disables rate adjust
control \J1 - Enables rate adjust
\Kn Set break - In connect state, transmits break to remote (if
in reliable mode):
\K0 - Enters command mode, no break sent
\K1 - Enters command mode, no break sent
\K2 - Enters command mode, no break sent
\K3 - Non-destructive/expedited
\K4 - Enters command mode, no break sent
\K5 - Non-detructive/non-expedited
- In command state, transmits break to remote (if
in reliable mode):
\K0,1 Destructive/expedited
\K2,3 Non-destructive/expedited
\K4,5 Non-destructive/non-expedited
-In connect state, receives break, enters command
state
\K0,2,4 - Sends break and enters command state
\K1,3,5 - Sends a break
- In connect state, receives break at modem port/
sends to serial port.
\K0,1 - Destructive/expedited
\K2,3 - Non-destructive/expedited
\K4,5 - Non-destructive/non-expidited
\Nn Operating \N0 - Selects buffer mode with speed buffering
Mode \N1 - Selects buffer mode with speed buffering
\N2 - Selects MNP reliable mode
\N3 - Selects V.42 auto-reliable mode
\N4 - Selects V.42 reliable mode
\O Originate reliable link
\Qn serial flow \Q0 - Disables flow control
control \Q1 - XON/XOFF software flow control
\Q2 - Uni-directional hardware flow control
\Q3 - Bi-directional hardware flow control
\T0 Activity 0 - default, inactivate timer, range 0-99
Timer
\U Accept reliable link
\Xn XON/XOFF \X0 - Process flow control characters
\X1 - Process flow control characters & passes
to local or remote.
\Y Switch to reliable mode
\Z Switch to normal mode
-Jn V.42 Detect -J0 - Disables the V.42 detection phase
-J1 - Enables the V.42 detect phase
"Hn V.42 "H0 - Disables V.42bis
Control "H1 - Enables V.42bios only transmitting data
"H2 - Enables V.42bios only when receiving data
"H3 - Enables V.42bis transmitting and receiving data
"On V.42 length "O32 (default) Range: 6-250
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.