Multi-Tech Systems MT4X56USB User Manual

Page 47

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Chapter 4 - AT Commands, S-Registers and Result Codes

MT4X56USB

47

Command:

\Vn

Protocol Result Code

Values:

n = 0, 1, or 2

Default:

1

Description:

\V0

Disable the appending of the protocol result code to the DCE speed.

\V1

Enable the appending of the protocol result code to the DCE speed.

\V2

Same as \V1.

Command:

\Xn

XON/XOFF Pass-Through

Values:

n = 0 or 1

Defaults:

0

Description:

\X0

Modem responds to and discards XON/XOFF characters.

\X1

Modem responds to and passes XON/XOFF characters.

Command:

-Cn

Data Calling Tone

Values:

n = 0 or 1

Defaults:

0

Description:

-C0

Disable V.25 data calling tone to deny remote data/fax/voice discrimination.

-C1

Enable V.25 data calling tone to allow remote data/fax/voice discrimination.

Command:

%B

View Numbers in Blacklist

Values:

n/a

Description:

If blacklisting is in effect, AT%B displays the numbers for which the last call attempted in the
previous two hours failed. In countries that do not require blacklisting, the ERROR result code
appears.

Command:

%Cn

Data Compression Control

Values:

n = 0 or 1

Default:

1

Description:

%C0

Disable V.42bis/MNP 5 data compression.

%C1

Enable V.42bis/MNP 5 data compression.

Command: %DCn AT Command Control
Values:

n = 0 or 1

Default:

0

Description: %DC0 The modem responds to AT commands.

%DC1 The modem ignores AT commands.

Note: The modem will respond to AT%DC for 10 seconds after power-up.

Command:

%En

Fallback and Fall Forward Control

Values:

n = 0, 1, or 2

Default:

2

Description:

%E0

Disable fallback and fall forward.

%E1

Enable fallback, disable fall forward.

%E2

Enable fallback and fall forward.

Command: #Sx

Enter Setup Password

Values:

x= password (1–8 characters, case sensitive)

Default:

MTSMODEM

Description:

Enters the remote configuration setup password.

Command: #S=x Store Setup Password
Values:

x= password (1–8 characters, case sensitive)

Default:

MTSMODEM

Description:

Stores a new remote configuration setup password.

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