IPTools.net.ua

Modem Type

Data (synchronous/asynchronous)/Fax

Maximum Data Rate

28.8Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

External

Fax Class

Class I & II

Data Modulation Protocol

ITU-T V.21, V.22, V.22bis, V.32, V.32bis, V.34

Fax Modulation Protocol

ITU-T V.17, V.21CH2, V.27ter, V.29

Error Correction/Compression

MNP5, V.42, V.42bis

CONNECTIONS

Purpose

Location

Purpose

Location

Line out

CN1

DC power

CN4

Line in

CN2

Power switch

SW1

RS-232/422

CN3

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

EC/SQ

Green

On

Error correction enabled

EC/SQ

Green

Off

Error correction disabled

EC/SQ

Green

Blinking, mostly on

Error correction activated and poor line signal errors detected

EC/SQ

Green

Blinking, mostly off

Error correction not activated and poor line signal errors detected

HS/RI

Green

On

Modem is operating at highest configured speed

HS/RI

Green

Off

Modem is operating at less than highest configured speed

HS/RI

Green

Blinking

Phone is ringing

CD

Green

On

Carrier signal detected

CD

Green

Off

Carrier signal not detected

OH/APL

Green

On

Modem is off-hook

OH/APL

Green

Off

Modem is on-hook

OH/APL

Green

Blinking

Modem set for leased line

RD

Green

On

Modem is receiving data

RD

Green

Off

Modem is not receiving data

SD

Green

On

Modem is transmitting data

SD

Green

Off

Modem is not transmitting data

TR

Green

On

DTR signal is high or modem is set to ignore signal

TR

Green

Off

DTR signal is low

MR/PWR

Green

Off

Power is off

MR/PWR

Green

On

Power is on

MR/PWR

Green

Blinking, slow

Download only mode

MR/PWR

Green

Blinking, fast

Cloning mode

MR/PWR

Green

Blinking

Power on in leased mode

AT COMMAND RESPONSE

Type:

Register

Format:

AT [cmds] S84=n [cmds]

Example:

AT S84=0 &W<CR>

Description:

Sets the response to AT commands.

Command

Function

í S84=0

Normal operation

S84=1

Execute valid commands, suppress error codes.

S84=2

Ignore configuration commands, always return OK error code.

AUTO BAUD

Type:

Register

Format:

AT [cmds] S78=n [cmds]

Example:

AT S78=0 &W<CR>

Description:

Allows modem to connect at remote modem�s modulation.

Command

Function

í S78=0

Auto baud enabled.

S78=1

Auto baud disabled.

S78=2

PBX operation.

AUTO-RELIABLE FALLBACK CHARACTER

Type:

Register

Format:

AT [cmds] %An [cmds]

Example:

AT%A20<CR>

Default:

19

Range:

0-127

Unit:

ASCII

Description:

Sets the character used as the auto-reliable fallback character. %A0 will disable this function.

AUTO-RELIABLE TIME BUFFER CONFIGURATION

Type:

Configuration

Format:

AT [cmds] \Cn [cmds]

Example:

AT \C1 &W<CR>

Description:

Controls the handling of incoming data during auto-reliable time period.

Command

Function

í \CO

Data is discarded.

\C1

Data is buffered.

\C2

Data is discarded, resets to \C1 on receipt of autoreliable fallback character.

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Example:

AT \K5 &W<CR>

Description:

Selects response to DTE break command.

Command

Function

\K0

Send break, clear buffer, enter command mode.

\K1

Send break, clear buffer

\K2

Send break, send data, enter command mode.

\K3

Send break. send data,

\K4

Send data, send break, enter command mode.

í \K5

Send data, send break.

\K6

Disabled.

BUSY OUT ON LOW DTR

Type:

Register

Format:

AT [cmds] S69=n [cmds]

Example:

AT S69=0 &W<CR>

Description:

Modem goes off hook on low DTR (use only in PBX mode).

Command

Function

í S69=0

Busy out disabled.

S69=1

Busy out enabled.

CD SIGNAL

Type:

Configuration

Format:

AT [cmds] &Cn [cmds]

Example:

AT &C3 <CR>

Description:

Configures the behavior of the carrier detect signal.

Command

Function

&C0

CD forced high.

í &C1

CD normal.

&C2

CD forced high except during handshaking and disconnecting.

&C3

CD momentary interrupt on disconnect.

&C4

CD follows remote RTS signal.

&C5

CD Follows DTR signal. Forced low on disconnect.

&C6

CD forced low on retrain of over 10 sec. Forced high after no retrain for over 10 sec.

CELLULAR ENHANCEMENTS

Type:

Register

Format:

AT [cmds] S91=n [cmds]

Example:

AT S91=0 &W<CR>

Description:

Configures modem to enhanced cellular mode

Command

Function

í S91=0

Disabled

S91=1

Enabled

CLEAR ERROR BUFFER

Type:

Immediate

Format:

AT [cmds] "F [cmds]

Example:

AT "F &W<CR>

Description:

Empties error buffer.

COMPRESSION

Type:

Configuration

Format:

AT %Cn

Example:

AT I2 %C1 &B0<CR>

Description:

Selects data compression.

Command

Function

%C0

Data compression disabled.

í %C1

Data compression enabled.

CTS SIGNAL

Type:

Configuration

Format:

AT [cmds] \Dn [cmds]

Example:

AT \D0<CR>

Description:

Selects the function of the CTS signal.

Command

Function

í \D0

CTS forced high.

\D1

CTS normal.

\D2

CTS interrupted for 2 seconds on disconnect.

\D3

CTS follows DTR.

DISCONNECT BUFFER DELAY

Type:

Register

Format:

AT [cmds] S39=n [cmds]

Example:

AT S39=0<CR>

Default:

Unidentified

Range:

0-255

Unit:

1 second

Description:

Selects how long the modem will continue to transmit data in receive buffer after receipt of disconnect signal

DISCONNECT BUFFER DELAY

Type:

Register

Format:

AT [cmds] S49=n [cmds]

Example:

AT S49=0<CR>

Default:

10

Range:

0-255

Unit:

1 second

Description:

Selects how long the modem will continue to transmit data in transmit buffer after receipt of disconnect signal

DISCONNECT IMMEDIATELY

Type:

Configuration

Format:

AT [cmds] S85=n [cmds]

Example:

AT S85=0 &W<CR>

Description:

Disconnect immediately on receipt of disconnect signal from DTE or diagnostic control panel.

Command

Function

í S85=0

Disabled.

S85=1

Enabled.

DISCONNECT INACTIVITY

Type:

Register

Format:

AT [cmds] S80=n [cmds]

Example:

AT S80=3 &W<CR>

Description:

Sets the signal monitored by the inactivity timer (\T).

Command

Function

S80=0

Transmit or receive.

S80=1

Transmit only.

S80=2

Receive only.

í S80=3

Transmit and receive.

DISCONNECT ON LOSS OF CURRENT

Type:

Configuration

Format:

AT [cmds] S65=n [cmds]

Example:

AT S65=0<CR>

Description:

Causes the modem to disconnect if the telephone line�s current drops.

Command

Function

í S65=0

Disconnect after 8ms if current is lost.

S65=1

Disconnect after 90ms if current is lost.

S65=2

Disabled

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] \Gn [cmds]

Example:

AT \G1 &K3<CR>

Description:

Selects modem port flow control.

Command

Function

í \G0

Flow control disabled.

\G1

Flow control enabled.

FLOW CONTROL TYPE

Type:

Configuration

Format:

AT [cmds] \Qn [cmds]

Example:

AT \Q5<CR>

Description:

Sets type of flow control used by modem.

Command

Function

\Q0

Flow control disabled.

\Q1

Bidirectional XON/XOFF flow control enabled.

\Q2

CTS flow control by DCE enabled.

í \Q3

Bidirectional CTS/RTS flow control enabled.

\Q4

XON/XOFF flow control by DCE enabled.

\Q5

XON/XOFF flow control by DTE enabled.

\Q6

RTS flow control by DTE enabled.

INACTIVITY TIMER

Type:

Register

Format:

AT [cmds] \Tn [cmds]

Example:

AT\T20<CR>

Default:

0

Range:

0-255

Unit:

1 minute

Description:

Sets the length of time that the modem does not receive information before it disconnects.

LAP-M FRAME SIZE

Type:

Configuration

Format:

AT [cmds] \An [cmds]

Example:

AT \A3 %C1<CR>

Description:

Sets the maximum frame size for V.42 and MNP connections.

Command

Function

\A0

Maximum frame size is 64

\A1

Maximum frame size is 128

\A2

Maximum frame size is 192

í \A3

Maximum frame size is 256

\A4

Maximum frame size is 32

\A5

Maximum frame size is 16

Note: Maximum V.42 frame size is 128.

LAP-M FRAME WINDOW

Type:

Register

Format:

AT [cmds] S89=n [cmds]

Example:

ATS89=6<CR>

Default:

0

Range:

1-9

Unit:

1 frame (beginning with 1=6 frames, 0=auto adjust)

Description:

Sets the number of frames used in V.42 and V.42bis transmissions

LEASED LINE AUTO-RETRAIN

Type:

Register

Format:

AT [cmds] S82=n [cmds]

Example:

AT S82=0 &W<CR>

Description:

Allows modem to retrain to compensate for bad line quality in V.32bis, V.32terbo or V.34 mode

Command

Function

í S82=0

Retrain enabled.

S82=1

Retrain disabled.

LEASED LINE DISCONNECT LEVEL

Type:

Register

Format:

AT [cmds] S48=n [cmds]

Example:

AT S48=0 &W<CR>

Description:

Sets level carrier signal drops to before disconnect.

Command

Function

í S48=0

Disconnect at -43dBm

S48=1

Disconnect at -26dBm

LEASED LINE SPEED

Type:

Register

Format:

AT [cmds] S44=n [cmds]

Example:

ATS44=6<CR>

Default:

27

Description:

Sets maximum leased line speed

Command

Function

S44=1

14.4Kbps V.32bis

S44=2

12.0Kbps V.32bis

S44=3

9600bps V.32bis, V.32

S44=4

7200bps V.32bis

S44=5

4800bps V.32bis, V.32

S44=6

2400bps V.22bis

S44=18

19.2Kbps V.32terbo

S44=19

16.8Kbps V.32terbo

S44=25

33.6Kbps AT&T V.34

S44=26

31.2Kbps AT&T V.34

í S44=27

28.8Kbps V.34

S44=28

26.4Kbps V.34

S44=29

24.0Kbps V.34

S44=30

21.6Kbps V.34

S44=31

19.2Kbps V.34

S44=32

16.8Kbps V.34

S44=33

14.4Kbps V.34

S44=34

12.0Kbps V.34

S44=35

9600bps V.34

S44=36

7200bps V.34

S44=37

4800bps V.34

S44=38

2400bps V.34

LEASED LINE TRANSMISSION LEVEL

Type:

Register

Format:

AT [cmds] S45=n [cmds]

Example:

AT S45=15<CR>

Default:

0

Range:

0 - 15

Unit:

1 dBm

Description:

Sets the signal level for transmission when in leased line mode.

LINE TYPE

Type:

Configuration

Format:

AT [cmds] &Ln [cmds]

Example:

AT &L0 H1 DT555-1212<CR>

Description:

Selects line type.

Command

Function

í &L0

Switched line.

&L1

2-wire originate mode leased line.

&L2

2-wire answer mode leased line.

LOCK SERIAL PORT

Type:

Configuration

Format:

AT [cmds] S90=n [cmds]

Example:

AT S90=0<CR>

Description:

Sets operation of serial port speed.

Command

Function

í S90=0

Disabled.

S90=1

Serial speed follows connect speed.

NETWORK POSITION IDENTIFICATION

Type:

Register

Format:

AT [cmds] S74=n [cmds]

Example:

AT S74=0 &W<CR>

Description:

Identifies modem as either tributary or control

Command

Function

í S74=0

Identify as tributary

íS74=1

Identify as control

PASSWORD REMOTE ACCESS

Type:

Register

Format:

AT [cmds] S56=n [cmds]

Example:

ATS56=6<CR>

Default:

None

Range:

00-99

Unit:

Password digits

Description:

Allows entry of the first two digits of remote access password.

PASSWORD REMOTE ACCESS

Type:

Register

Format:

AT [cmds] S57=n [cmds]

Example:

ATS57=6<CR>

Default:

None

Range:

00-99

Unit:

Password digits

Description:

Allows entry of the second two digits of remote access password.

PASSWORD REMOTE ACCESS

Type:

Register

Format:

AT [cmds] S58=n [cmds]

Example:

ATS58=6<CR>

Default:

None

Range:

00-99

Unit:

Password digits

Description:

Allows entry of the third two digits of remote access password.

PASSWORD REMOTE ACCESS

Type:

Register

Format:

AT [cmds] S59=n [cmds]

Example:

ATS59=6<CR>

Default:

None

Range:

00-99

Unit:

Password digits

Description:

Allows entry of the fourth two digits of remote access password.

PROTOCOL/SPEED

Type:

Immediate

Format:

AT [cmds] %Bn [cmds]

Example:

AT %B14400<CR>

Description:

Selects the current DCE speed.

Command

Function

%B300

Select V.21 or Bell103 at 300bps speed.

%B1200

Select V.22,V.23 or Bell 212A at 1200bps speed.

%B2400

Select V.34 at 2400bps speed.

%B4800

Select V.34 at 4800bps speed.

%B7200

Select V.34 at 7200bps speed.

%B9600

Select V.34 at 9600bps uncoded speed.

%B12000

Select V.34 at 12Kbps speed.

%B14400

Select V.34 at 14.4Kbps speed.

%B16800

Select V.34 at 16.8Kbps speed.

%B19200

Select V.34 at 19.2Kbps speed.

%B21600

Select V.34 at 21.6Kbps speed.

%B24000

Select V.34 at 24Kbps speed.

%B26400

Select V.34 at 26.4Kbps speed.

í %B28800

Select V.34 at 28.8Kbps speed.

%BL31200

Select V.34 proprietary at 31.2Kbps speed.

%BL33600

Select V.34 proprietary at 33.6Kbps speed.

%BL2400

Select V.22bis at 2400Kbps speed.

%BL4800

Select V.32bis/V.32 at 4800Kbps speed.

%BL7200

Select V.32bis at 7200Kbps speed.

%BL9600

Select V.32bis/V.32 at 9600Kbps speed.

%BL12000

Select V.32bis at 12Kbps speed.

%BL14400

Select V.32bis at 14.4Kbps speed.

%BL16800

Select V.32terbo at 16.8Kbps speed.

%BL19200

Select V.32terbo at 19.2Kbps speed.

REMOTE CLONE

Type:

Configuration

Format:

AT [cmds] &&P1 [cmds]

Example:

AT &&P1 &W<CR>

Description:

In online command mode, copies firmware to remote 3825Plus modem

REMOTE CONFIGURATION

Type:

Configuration

Format:

AT [cmds] S55=n [cmds]

Example:

AT S55=0 &W<CR>

Description:

Allows remote configuration by 3800 series modem.

Command

Function

í S55=0

Remote configuration enabled.

S55=1

Remote configuration disabled.

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Example:

AT I1 O<CR>

Description:

Displays modem properties.

Command

Function

I0

Reports product code.

I1

Reports firmware 3 digit version number.

I2

Performs EPROM check

I3

Reports serial number

I4

Reports model number

I5

Reports hardware part number

I6

Reports software part number

I9

Reports firmware 3 digit version number.

I11

Reports RAM checksum result.

I17

Reports last eight critical errors from last to first

I19

Reports complete firmware revision number

RJ11 CELLULAR ADAPT

Type:

Register

Format:

AT [cmds] S93=n [cmds]

Example:

AT S93=0 &W<CR>

Description:

Adds support for RJ11 connection during cellular operation

Command

Function

í S93=0

Disabled.

S93=1

Enabled.

SECURITY CHANGE ADMINISTRATION PASSWORD

Type:

Configuration

Format:

AT [cmds] %SA=nnnnnnnn [cmds]

Example:

AT %SA=22233344 &W<CR>

Description:

Changes administration password.

SECURITY CHANGE DTE PASSWORD

Type:

Configuration

Format:

AT [cmds] %SBi=nnnnnnnn [cmds]

Example:

AT %SBi=22233344 &W<CR>

Description:

Changes the DTE type password in index i.

SECURITY CHANGE VF PLUS DTE PASSWORD

Type:

Configuration

Format:

AT [cmds] %SBi=nnnnnnnn [cmds]

Example:

AT %SBi=22233344 &W<CR>

Description:

Changes the VF plus DTE type password in index i.

SECURITY CHANGE VF PASSWORD

Type:

Configuration

Format:

AT [cmds] %SVi=nnnnnnnn [cmds]

Example:

AT %SVi=22233344 &W<CR>

Description:

Changes the VF type password in index i.

SECURITY DISPLAY PASSWORD

Type:

Immediate

Format:

AT [cmds] %SPi [cmds]

Example:

AT %SPi &W<CR>

Description:

Displays the VF or DTE type password in index i.

SECURITY DELETE PASSWORD

Type:

Configuration

Format:

AT [cmds] %SPi= [cmds]

Example:

AT %SPi= &W<CR>

Description:

Delete the VF or DTE type password in index i.

SECURITY ENTER ADMINISTRATION PASSWORD

Type:

Configuration

Format:

AT [cmds] %SAnnnnnnnn [cmds]

Example:

AT %SA22233344 &W<CR>

Description:

Sets modem to allow security configuration and password changes.

SECURITY RESET

Type:

Configuration

Format:

AT [cmds] %SR [cmds]

Example:

AT %SR &W<CR>

Description:

Resets administration password and empties password table

STORED PROFILE

Type:

Register

Format:

AT [cmds] S88=n [cmds]

Example:

AT S88=0 &W<CR>

Description:

Loads stored profile on disconnect.

Command

Function

í S88=0

Disabled.

S88=231

Disabled.

S88=1

Enabled.

S88=232

Enabled.

SWITCHED LINE SPEED

Type:

Register

Format:

AT [cmds] S41=n [cmds]

Example:

ATS41=6<CR>

Default:

20

Description:

Sets maximum line speed

Command

Function

S41=1

14.4Kbps V.32bis

S41=2

12.0Kbps V.32bis

S41=3

9600bps V.32bis, V.32

S41=4

7200bps V.32bis

S41=5

4800bps V.32bis, V.32

S41=6

2400bps V.22bis

S41=7

1200bps V.22

S41=8

1200bps 212A

S41=10

0-300bps V21

S41=11

0-300bps 103J

S41=20

19.2Kbps V.32terbo

S41=21

16.8Kbps V.32terbo

S41=27

33.6Kbps AT&T V.34

S41=28

31.2Kbps AT&T V.34

í S41=29

28.8Kbps V.34

S41=30

26.4Kbps V.34

S41=31

24.0Kbps V.34

S41=32

21.6Kbps V.34

S41=33

19.2Kbps V.34

S41=34

16.8Kbps V.34

S41=35

14.4Kbps V.34

S41=36

12.0Kbps V.34

S41=37

9600bps V.34

S41=38

7200bps V.34

S41=39

4800bps V.34

S41=40

2400bps V.34

TRANSMISSION LEVEL

Type:

Configuration

Format:

AT [cmds] &In [cmds]

Example:

AT &I26 &W<CR>

Default:

Unidentified

Range:

0-32, 99, 100

Unit:

-1 dBm

Description:

Sets the signal level for transmission

Note: 0-8 invalid in North America. Set to 99 for autoadjust ETC1.0 specification. Set to 100 for autoadjust ETC1.1 specification

TRANSMISSION LEVEL

Type:

Configuration

Format:

AT [cmds] &J0 [cmds]

Example:

AT &J0 &W<CR>

Description:

Sets -9 dBm permissive mode

V.25bis CODE SET

Type:

Configuration

Format:

AT [cmds] S62=n [cmds]

Example:

AT S62=0 &W<CR>

Description:

Sets coding type used in V.25bis mode.

Command

Function

í S62=0

ASCII

S62=1

EBCDIC

V.25bis IDLE CHARACTER

Type:

Configuration

Format:

AT [cmds] S63=n [cmds]

Example:

AT S63=0 &W<CR>

Description:

Sets V.25 idle fill type

Command

Function

í S63=0

Fill character is mark.

S63=1

Fill character is flag.

V.25bis NEW LINE CHARACTER

Type:

Configuration

Format:

AT [cmds] S64=n [cmds]

Example:

AT S64=0 &W<CR>

Description:

Sets V.25 new line character.

Command

Function

í S64=0

Carriage return and line feed.

S64=1

Carriage return.

S64=2

Line feed.

V.32bis AUTO-RETRAIN

Type:

Register

Format:

AT [cmds] S76=n [cmds]

Example:

AT S76=0 &W<CR>

Description:

Selects action the modem will take during bad line quality on 32bis connection.

Command

Function

í S76=0

Auto retrain enabled.

S76=1

Auto retrain disabled.

S76=2

Auto retrain started at 4800bps for V.32bis operation.

S76=3

Auto retrain started at 9600bps for V.32bis operation.

V.32bis TRAIN

Type:

Register

Format:

AT [cmds] S43=n [cmds]

Example:

AT S43=0 &W<CR>

Description:

Sets train length for V.34, V.32terbo, V.32bis and V32.

Command

Function

í S43=0

Long

S43=1

Short

V.34 SPLIT BAUD MODE

Type:

Configuration

Format:

AT [cmds] S14=n [cmds]

Example:

AT S14=0 <CR>

Description:

Controls V.34 split baud mode.

Command

Function

í S14=0

V.34 split baud mode enabled.

S14=1

V.34 split baud mode disabled.

V.42bis COMPRESSION CONTROL

Type:

Configuration

Format:

AT [cmds] "Hn [cmds]

Example:

AT "H3 &W<CR>

Description:

Controls V.42bis data compression

Command

Function

"H0

V.42bis disabled.

"H1

V.42bis when transmitting enabled.

"H2

V.42bis when receiving enabled.

í "H3

V.42bis when transmitting/receiving enabled.

XON/XOFF PASS-THROUGH

Type:

Configuration

Format:

AT [cmds] \Xn [cmds]

Example:

AT \X7 O<CR>

Description:

Selects whether XON/XOFF signals are sent to remote modem.

Command

Function

í \X0

XON/XOFF signals trapped by local modem.

\X1

XON/XOFF passed through local modem.

DTR ALARM

Type:

Register

Format:

AT [cmds] S77=n [cmds]

Example:

AT S77=0 &W<CR>

Description:

Sends alarm to proprietary Series Management Controller if DTR low for 10 seconds.

Command

Function

í S77=0

Alarm disabled.

S77=1

Alarm enabled.

CALLBACK SECURITY

Type:

Register

Format:

AT [cmds] S67=n [cmds]

Example:

AT S67=0 &W<CR>

Description:

Enables callback security option

Command

Function

í S67=0

Disabled

S67=1

Enabled

ANSWER SECURITY

Type:

Register

Format:

AT [cmds] S68=n [cmds]

Example:

AT S68=0 &W<CR>

Description:

Selects what type of answer security is used.

Command

Function

S68=0

Answer security disabled

S68=1

DTE answer security enabled.

S68=2

VF and DTE answer security enabled

S68=3

VF with DTE answer security enabled

ORIGINATE SECURITY

Type:

Register

Format:

AT [cmds] S70=n [cmds]

Example:

AT S70=0 &W<CR>

Description:

Enables originate security option

Command

Function

í S70=0

Originate security disabled

S70=1

Originate security enabled

VF PROMPT TYPE

Type:

Register

Format:

AT [cmds] S95=n [cmds]

Example:

AT S95=0 &W<CR>

Description:

Selects the type of VF password prompt sent to remote dialer.

Command

Function

í S95=0

Second dial tone

S95=1

Quiet answer

Note: Also selects which dial modifier (@ or W) must precede password

PASSWORD ATTTEMPT LIMIT

Type:

Register

Format:

AT [cmds] S96=n [cmds]

Example:

AT S96=0 &W<CR>

Description:

Sets number of DTE password attempts before disconnect.

Command

Function

í S96=0

1 attempt

S96=1

2 attempts

S96=2

3 attempts

S96=3

4 attempts

S96=4

5 attempts

PASSWORD DTE TERMINATION CHARACTER

Type:

Register

Format:

AT [cmds] S97=n [cmds]

Example:

ATS97=13<CR>

Default:

13

Range:

1-127

Unit:

ASCII

Description:

Sets Character used to indicate end of password or callback directory/number

PASSWORD BACKSPACE CHARACTER

Type:

Register

Format:

AT [cmds] S98=n [cmds]

Example:

ATS98=8<CR>

Default:

8

Range:

0-127

Unit:

ASCII

Description:

Sets Character used backspace when entering password or callback directory/number