Ampersand (&) Command Set B-5

Command

Function

 

 

X3

Ignore Dial Tone

 

X4

Microsoft default

 

X7

Business Modem default

 

 

Z

Software reset. Pressing the RESET button on the rear panel of

 

the modem resets the modem to the &F0 configuration

 

template (no flow control).

 

 

 

Ampersand (&)

Command Set

Command

Function

 

 

 

&$

Display help for the ampersand (&) command set.

 

 

&An

Enable or disable the display of additional result code subsets.

 

(Also, see the Xn command.)

 

&A0

Do not display ARQ result codes.

 

&A1

Display ARQ result codes.

 

&A2

In addition to ARQ result codes, display HST, V.32,

 

 

V.FC, or V.34 modulation indicator.

 

&A3

In addition to ARQ and modulation indicators,

 

 

display an error control indicator (LAPM, HST, MNP,

 

 

or NONE) and a data compression type (V42bis or

 

 

MNP5).

 

 

&Bn

Set the serial port rate to variable or fixed.

 

&B0

Variable: The serial port rate adapts to match the

 

 

speed of the connection.

 

&B1

Fixed: The modem always communicates with your

 

 

computer at the rate at which you have set,

 

 

regardless of the connection rate.

 

&B2

When answering calls, use the fixed rate for ARQ

 

 

calls and variable rates for non-ARQ calls.

 

 

 

The serial port rate MUST be equal to or higher than the &Nn rate.

.

Command

Function

 

 

 

&Cn

Controls how the modem sends a Carrier Detect (CD) signal to

 

your computer.

 

&C0

CD always ON, even if the modem is not on line.

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3Com 56K manual Ampersand Command Set