Table A-1.

AT Commands, Cross-Referenced to Front Panel Options (Continued)

AT

Parameter &

 

Command

Option

Description

 

 

 

AT*AS1

=Always

A dial call is always answered. As soon as the dial call is answered, the leased line connection

 

 

is dropped (with auto-answering, the leased line is dropped after the correct number of rings).

 

 

If training on the dial line fails, the modem returns to the leased line.

 

 

 

 

Auto Type

Auto Type

AT*AY0

=CCITT

During answer-back tone, the modem attempts to negotiate a connection in the V.32

 

 

modulation mode. As soon as answer-back tone ends, if aV.32 tone has not been detected

 

 

during ABT, the modem attempts to negotiate a connection in the V.22bis modulation mode.

AT*AY1

=Codex

During answer-back tone, the modem attempts to negotiate a connection in the V.32

 

 

modulation mode. After sending answer-back tone, the modem continues to attempt to

 

 

negotiate a connection in the V.32 modulation mode. If unsuccessful, the modem tries to

 

 

negotiate a connection in the V.22bis modulation mode.

 

 

 

 

Blind Dial

Blind Dial

 

 

Determines the time the modem waits before dialing; once time has expired, the modem dials

 

 

without waiting for a dial tone.

AT*BD0

=2

The modem waits 2 seconds before dialing.

AT*BD1

=4

The modem waits 4 seconds before dialing.

 

 

AT*BD2

=S6

The modem waits the amount of time specified by S-Register 6 before dialing.

 

Break

Break Handling

 

 

Controls how the modem handles the break signal in reliable and auto-reliable data modes.

 

 

Break signals are sent to the DTE for the duration specified in S-Register 97.

AT*BK0

=Destruct

The modem uses destructive and expedited break handling. It passes the break to the remote

 

 

site immediately and deletes all data from its buffers. NOTE: Destructive breaks reinitialize

 

 

data compression tables for MNP-5 and V.42bis.

AT*BK1

=Expedited

The modem uses nondestructive and expedited break handling. It passes the break to the

 

 

remote site immediately without deleting data from its buffers.

AT*BK2

=Standard

The modem uses standard break handling. It passes the break to the remote site in sequence

 

 

with any transmit data from its buffers.

 

Mode

Answer/Originate Mode

AT*CA0

=Orig

The modem operates as an originating modem in a manual answer/dial application.

AT*CA1

=Answer

The modem operates as an answer modem in a manual answer/dial application.

AT*CA2

=External

The signal from the DTE on EIA/TIA 232-D Pin 11 determines whether the modem is in

 

 

answer or originate mode. If the signal is off, the modem is in originate mode; if the signal is

 

 

on, the modem is in answer mode

AT*CA3

=Auto A in O

The modem configures itself as an originating modem after auto-answering a call. In leased-

 

 

line operation, the modem functions as if it is set to originate calls. NOTE: The functions

 

 

provided by this setting only apply when the modem auto-answers.

 

 

 

 

DCD Loss Dis

DCD Loss Disconnect

AT*CD0

=Off

The modem will not disconnect due to loss of carrier.

AT*CD1

=3 s

The modem hangs up if it loses carrier for 3 seconds.

 

 

AT*CD2

=7 s

The modem hangs up if it loses carrier for 7 seconds.

AT*CD3

=S10

The modem checks the value stored in S-Register 10 to determine when it disconnects due to

 

 

loss of carrier. See the “S-Registers” section in Chapter 5 for more information.

Gray shading indicates country-specific options. See Appendix C for your country’s options.

Configuration

Quick-Reference

Configuration Quick Reference A-15

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Telenetics V.32bis Series, V.34-SDC, 326X V.34 manual Auto Type, Blind Dial, Break, Mode, DCD Loss Dis

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