Toshiba M200 사용자 설명서

This command sets speakers volume to low, medium, or high.

Low volume.

Low volume. (Same as 

)

Medium volume (default).

High volume.

Result Codes:

n=0,1,2,3

Otherwise

This command turns the speakers on or off.

The speakers are off.

The speakers are on until the modem detects the carrier signal
(default).

The speakers are always on when modem is off-hook.

Speakers are on until the carrier is detected, except when
dialing.

Result Codes:

n=0,1,2,3

Otherwise

This command controls whether or not the local modem performs a
negotiated handshake at connection time with the remote modem when
the communication speed of the two modems is different.

When originating or answering, this is for handshake only at
the communication standard specified by S37 and the ATB
command.

When originating or answering, begin the handshake at the
communication standard specified by S37 and the ATB
command (default).

During handshake, a lower transmission speed may be
selected.