MultiModemDID User Guide

 

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

 

 

 

Command:

\Nn

Error Correction Mode Selection

Values:

 

n = 0–5, or 7

Default:

 

3

Description:

\N0

Non-error correction mode with data buffering (buffer mode;

 

 

same as &Q6).

 

\N1

Direct mode.

 

\N2

MNP reliable mode. If the modem cannot make an MNP

 

 

connection, it disconnects.

 

\N3

V.42/MNP auto-reliable mode. The modem attempts first to

 

 

connect in V.42 error correction mode, then in MNP mode, and

 

 

finally in non-error-correction (buffer) mode with continued

 

 

operation.

 

\N4

V.42 reliable mode. If the modem cannot make a V.42

 

 

connection, it disconnects.

 

\N5

V.42, MNP, or non-error correction (same as \N3).

 

\N7

V.42, MNP, or non-error correction (same as \N3).

Command:

\Qn

Flow Control Selection

Values:

 

n = 0, 1, or 3

Default:

 

3

Description:

\Q0

Disables flow control (same as &K0).

 

\Q1

XON/XOFF software flow control (same as &K4).

 

\Q2

CTS-only flow control. Not supported.

 

\Q3

RTS/CTS hardware flow control (same as &K3).

Command:

\Tn

Inactivity Timer

Values:

 

n = 0, 1–255

Default:

 

0

Description:

\Tn

Sets the time (in minutes) that the modem waits after the last

 

 

character is sent or received before it disconnects. A value of

 

 

zero disables the timer. Applies only in buffer mode.

Note: You can also set the inactivity timer by changing the value of S30.

Command:

\Vn

Protocol Result Code

Values:

 

n = 0, 1, or 2

Default:

 

1

Description:

\V0

Disables the appending of the protocol result code to the DCE

 

 

speed.

 

\V1

Enables 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

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

 

 

discrimination.

 

-C1

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

 

 

discrimination.

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Multi-Tech Systems MT5634ZBA-DID manual Nn Error Correction Mode Selection, Qn Flow Control Selection, Tn Inactivity Timer