Western Telematic AT COMMAND SET MT9234 User Manual

Page 16

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3-8

MT5634/MT9234 Modem; AT Command Set

Command: &Tn

Loopback Test (V.54 Test) Commands

Values:

n = 0, 1, 3, 6

Default:

None

Description:

The modem can perform selected test and diagnostic functions. A

test can be run only when the modem is operating in non-error-

correction mode (normal or direct mode). For tests 3 and 6, a

connection between the two modems must be established. To

terminate a test in progress, the escape sequence (+++AT) must

be entered.

&T0 Stops any test in progress.

&T1 Starts a local analog loopback, V.54 Loop 3, test. If a

connection exists when this command is issued, the

modem hangs up. When the test starts, a CONNECT

message is displayed.

&T3 Starts local digital loopback, V.54 Loop 2, test. If no

connection exists, ERROR is returned.

&T6 Initiates a remote digital loopback, V.54 Loop 2, test

without self-test. If no connection exists, ERROR

is returned.

Command: &V

Display Current Settings

Values:

N/A

Description:

Displays the active modem settings.

Command: &Wn Store Current Configuration

Values:

n = 0 or 1

Default:

1

Description:

&W0 Stores current modem settings in non-volatile memory

and causes them to be loaded at power-on or following

the ATZ command instead of the factory defaults.

See &F command.

&W1 Clears user default settings from non-volatile memory

and causes the factory defaults to be loaded at power-on

or following the ATZ command.

Command: &Zy=x Store Dialing Command

Values:

y = 0–2 (0–1SMI-Parallel {internal})

x = Dialing command

Default:

None

Description:

Stores dialing command

x in memory location y. Dial the stored

number using the command ATDS=y. See Also the #CBS

command, a callback security command.

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