Chapter 1 – AT Commands, S-Registers and Result Codes

Command:

Sr=n

Set Register Value

Values:

 

r = S-register number; n varies

Default:

 

None

 

Description:

 

Set value of register Sr to value of n, where n is entered in decimal format (e.g.,

 

 

S0=1).

Command:

Sr?

Read Register Value

Values:

 

r = S-register number

Default:

 

None

 

Description:

 

Read value of register Sr and display it in 3-digit decimal form (e.g., S2? gives the

 

 

response 043).

Command:

T

Tone Dialing

Values:

 

P, T

 

Default:

 

T

 

Description:

 

Configures the modem for DTMF (touch-tone) dialing. Dialed digits are tone dialed

 

 

until a P command or dial modifier is received.

Command:

Vn

Result Code Format

Values:

 

n = 0 or 1

Default:

 

1

 

Description:

 

V0

Displays result codes as digits (terse response).

 

 

V1

Displays result codes as words (verbose response).

Command:

Wn

Result Code Options

Values:

 

n = 0, 1, or 2

Default:

 

2

 

Description:

 

W0

CONNECT result code reports serial port speed, disables protocol result

 

 

 

codes.

 

 

W1

CONNECT result code reports serial port speed, enables protocol result

 

 

 

codes.

 

 

W2

CONNECT result code reports line speed, enables protocol result codes.

Command:

Xn

Result Code Selection

Values:

 

n = 0–7

Default:

 

4

 

Description:

 

X0

Basic result codes (CONNECT); does not look for dial tone or busy signal.

 

 

X1

Extended result codes (CONNECT 46000 V42bis); does not look for dial tone

 

 

 

or busy signal.

 

 

X2

Extended result codes with NO DIALTONE; does not look for busy signal.

 

 

X3

Extended result codes with BUSY; does not look for dial tone.

 

 

X4

Extended result codes with NO DIALTONE and BUSY.

 

 

X5

Extended result codes with NO DIALTONE and BUSY.

 

 

X6

Extended result codes with NO DIALTONE and BUSY.

 

 

X7

Basic result codes with NO DIALTONE and BUSY.

Command:

Zn

Modem Reset

Values:

 

n = 0 or 1

Default:

 

None

Description:

 

Z0

Reset modem to profile saved by the last &W command.

 

 

Z1

Same as Z0.

Multi-Tech Systems, Inc. SocketModem MT5634SMIxx Reference Guide (S000263C)

11

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Multi-Tech Systems MT5634SMI V.34 Command Sr=n Set Register Value, Command Sr? Read Register Value, Command Tone Dialing

MT5634SMI V.34, MT5634SMI V.92 specifications

The Multi-Tech Systems MT5634SMI is a versatile and robust external modem designed to cater to a variety of communication needs. As a V.92/V.34 standard modem, it provides reliable and efficient data connections for both home and business users. Its unique blend of features and technologies makes it an excellent choice for users looking to achieve optimal performance in their data transmission.

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