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

 

Command: Sr=n

Function:

Set Register Value

Values:

r = S-register number; n varies

Default:

None

Description:Use Sr=n to set value of an S-register, where r is the number of the S-

 

register, and n is the value you want to set. See S-Registersin this chapter

 

for more information.

Command: Sr?

Function:

Read Register Value

Values:

r = S-register number

Default:

None

Description:Use Sr? to read the value of an S-register, where r is the number of the S-

 

register. See S-Registersin this chapter for further information.

Command: Vn

 

Function:

Terse/Verbose Result Codes

Values:

n = 0 or 1

Default:

V1 (Verbose)

Description: Use V to control whether the TA’s result codes display as digits (terse) or as

 

words (verbose). (Use Q to enable or disable the display of result codes.)

 

V0

Enable terse result codes.

 

V1

Enable verbose result codes.

Command: Xn

 

Function:

Connect Messages

Values:

n = 0, 1, 2, 3, 4, or 5

Default:

X2

(Enable all messages) and

 

X4

(Disable printing CLI with CONNECT message)

Description:Use X to select which result code messages the TA sends to the computer.

 

X0

Enables messages OK, CONNECT, RING, NO CARRIER, and

 

 

ERROR (terse result codes 0–4).

 

X1

Enables all messages except BUSY (terse result codes 0–5, 10–14,

 

 

17–19, 28, and 32). If a call is placed to a busy line, the message

 

 

NO CARRIER displays.

 

X2

Enable all messages (terse result codes 0–5, 7, 10–14, 17–19, 28,

 

 

and 32).

 

X3

Enables all messages EXCEPT it does NOT print protocol

 

 

messages. For example, for a V.120 connection, X2 prints:

 

 

CONNECT 64000/V.120

 

 

For a V.120 connection, X3 prints only the connect message (and

 

 

speed):

 

 

CONNECT 64000

 

X4

Disables printing Calling Line Identification (CLI) at the end of the

 

 

CONNECT message line. Does not affect X0, X1, or X2.

 

X5

Enables printing Calling Line Identification (CLI) at the end of the

 

 

CONNECT message line. Does not affect X0, X1, or X2.

Command: Zn

 

Function:

Reset to Stored Profile

Values:

none

Default:

none

Description: Resets TA to its current power-up profile and clears the command buffer. The

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AC International MTA128ST-USB manual Connect