AT

 

Function

Result

 

 

Command

 

Code

 

 

 

 

 

 

 

 

 

 

 

 

ATLn

Accepted but ignored.

OK n=0 or 3

 

 

ERROR

 

 

 

 

 

Otherwise

 

 

ATMn

Accepted but ignored.

OK n=0 or 3

 

 

ERROR

 

 

 

 

 

Otherwise

 

 

ATNn

Accepted but ignored.

OK n=0 or 1

 

 

ERROR

 

 

 

 

 

Otherwise

 

 

 

Return to On-Line Data Mode.

 

 

 

 

This command determines how the modem will enter the on-line data mode.

 

 

 

 

If the modem is in the on-line command mode, the modem enters the on-

OKn = 0 or 1 and

 

 

 

line data mode. If the modem is in the off-line command mode (no connec-

a connection

 

 

ATOn

tion), ERROR is reported.

exists.

 

 

O0Enters on-line data mode. Handling is determined by the Call Establish-

ERROR

 

 

 

 

 

 

Otherwise or if

 

 

 

ment task. Generally, if a connection exists, this command connects the

 

 

 

not connected.

 

 

 

DTE back to the remote modem after an escape (+++).

 

 

 

 

 

 

 

O1Same as above

 

 

 

ATP

Accepted but ignored.

OK

 

 

 

Quiet Results Codes Control command.

 

 

 

 

The command enables or disables the sending of the result codes to the

OK n=0 or 1

 

 

ATQn

DTE according to the parameter supplied. The parameter value, if valid, is

 

 

ERROR

 

 

written to S14 bit 2.

 

 

 

Q0

Enables result code to the DTE (Default).

Otherwise

 

 

 

 

 

 

 

Q1

Disables result code to the DTE

 

 

 

 

Read/Write S- Register.

 

 

 

ATSn

n

Establishes S-register n as the last register accessed

 

 

 

n=v

Sets S-Register n to the value v.

 

 

 

 

 

 

 

 

n?

Reports the value of S-Register n.

 

 

 

ATT

Accepted but ignored..

OK

 

 

 

Result Code Form. This command selects the sending of short-form or long-

 

 

 

 

form codes to the DTE. The parameter, if valid, is written to S14 bit 3.

OK n=0 or 1

 

 

ATVn

V0 Enables short-form (terse) result codes. Line feed is not issues before a

 

 

ERROR

 

 

 

short-form result.

Otherwise

 

 

 

V1 Enables long-form (verbose) results codes (Default).

 

 

 

ATWn

Accepted but ignored.

OK n=0 to 3

 

 

ERROR

 

 

 

 

 

Otherwise

 

 

ATXn

Accepted but ignored.

OK n=0 to 3

 

 

ERROR

 

 

 

 

 

Otherwise

 

 

ATYn

Accepted but ignored.

OK n=0 or 1

 

 

ERROR

 

 

 

 

 

Otherwise

 

 

ATZn

Accepted but ignored. (Soft Reset and restore Profile).

OK n=0 or 1

 

 

ERROR

 

 

 

 

 

Otherwise

 

 

 

DCD Option. The Digi Device Server controls the DCD output in accor-

 

 

 

 

dance with the parameter supplied. The parameter value, if valid is written

OK n=0 or 1

 

 

AT&Cn

to S21 bit 5.

 

 

ERROR

 

 

&C0 DCD remains ON at all times.

 

 

 

Otherwise

 

 

 

&C1 DCD follows the state of the connection

 

 

 

 

 

 

 

 

48

Chapter 7 Special Features: Modem Emulation

Page 48
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Digi 90000583_A manual Atp