Acer extensa-7x0

MTC Data/FAX

Advanced Data Addendum

AT Command Set

December 4, 1996

Lucent Technologies Inc.

AT Commands Reference

(continued)

\Nn

Error Control Mode Selection

This command determines the type of error control used by the modem when sending or receiving data.

\N0:

Buffer mode. No error control (same as &Q6).

\N1:

Direct mode.

\N2:

MNP or disconnect mode. The modem attempts to connect using MNP 2



4 error control

procedures. If this fails, the modem disconnects. This is also known as

MNP reliable mode.

\N3:

V.42,

MNP, or buffer (default).

The modem attempts to connect in V.42 error control mode. If this fails, the modem attempts to
connect in

MNP mode. If this fails, the modem connects in buffer mode and continues operation. This

is also known as V.42/

MNP auto reliable mode (same as &Q5).

\N4:

V.42 or disconnect. The modem attempts to connect in V.42 error control mode. If this fails, the call
will be disconnected.

\N5:

V.42.

MNP or buffer (same as \N3).

\N7:

V.42.

MNP or buffer (same as \N3).

Result Codes:

n = 0, 1, 2, 3, 4,5,7

Local Flow Control Selection

\Q0:

Disable flow control. Same as &K0.

\Q1:

XON/XOFF software flow control. Same as &K4.

\Q2:

CTS-only flow control. This is not supported and the response is ERROR.

\Q3:

RTS/CTS to DTE (default). Same as &K3.

Result Codes:

n = 0, 1, 3

ERROR

Otherwise

\Tn

Inactivity Timer

This command specifies the length of time (in minutes) that the modem will wait before disconnecting when no
data is sent or received. A setting of zero disables the timer. Alternatively, this timer may be specified in register
S30. This function is only applicable to buffer mode.

Result Codes:

n = 0

255

ERROR

Otherwise

\Vn

Protocol Result Code

\V0:

Disable protocol result code appended to DCE speed.

\V1:

Enable protocol result code appended to DCE speed (default).

Result Codes:

n = 0, 1

ERROR

Otherwise