Multi-Tech Systems MULTIMODEM MT2834ZDX User Manual

Page 13

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Chapter 3 – AT Commands, S-Registers, and Results Codes

Multi-Tech Systems, Inc. MT2834ZDX User's Guide

13

Command:

$MBn Modem Baud Rate

Values:

n = speed

Default:

28800 (ZDX) or 33600 (ZDXb)

Description:

$MB300 Originate call at 300 bps.
$MB1200 Originate call at 1200 bps.
$MB2400 Originate call at 2400 bps.
$MB4800 Originate call at 4800 bps.
$MB7200 Originate call at 7200 bps.
$MB9600 Originate call at 9600 bps.
$MB14400 Originate call at 14,400 bps.
$MB16800 Originate call at 16, 800 bps.
$MB19200 Originate call at 19,200 bps.
$MB28800 Originate call at 28,800 bps.
$MB33600 Originate call at 33,600 bps (ZDXb only).

Command:

Nd Dial a Stored Number

Values:

d = 0 or 1

Default: None
Description:

Dial stored telephone number d.

Command:

NdNe. .. Number Linking

Values:

d = 0 or 1; e = 1 or 0

Default: None
Description:

Dial stored number d; if it is busy, dial stored number e.

Command:

O Go Back Online

Values: n/a
Description:

Return to online mode after you have used an escape sequence to go from online mode to
command mode.

Command:

P Pulse Dial

Values: n/a
Default: Yes
Description:

The modem pulse-dials numbers that follow P in the dialing command.

Command:

&Pn Set Pulse Dial Ratios

Values:

n = 0 or 1

Default: 0
Description:

&P0 60:40 break/make pulse ratio.
&P1 67:33 break/make pulse ratio.
Note: The ZDXK is locked to a 67:33 pulse ratio (&P1).

Command:

Qn Result Codes Enable/Disable

Values:

n = 0, 1, or 2

Default: 0
Description:

Q0 Enable result codes.
Q1 Disable result codes (quiet).
Q2 Enable no-response answer mode, which leaves originate mode intelligent while turning off
answer mode responses and echo.

Command:

&Qn Multi-Tech or Standard Result Codes

Values:

n = 0 or 1

Default: 0
Description:

&Q0 Multi-Tech responses with modifiers.
&Q1 Standard AT responses with no modifiers.

Command:

Rn Reverse Originate/Answer Modes

Values:

n = 0 or 1

Default: 0
Description:

R0 Modem will not reverse modes.
R1 Modem will reverse modes when R is added to the dial string.

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