Tn inactivity timer limit, Xn xon/xoff pass through, B view numbers in blacklist – Intel LAN+Modem56 PC Card PRO/100 User Manual

Page 144: Cn data compression control, Cn data calling tone

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PRO/100 LAN+Modem PC Card User’s Guide

\Tn

Inactivity Timer Limit

The AT\Tn command specifies length of time (in minutes) that the

modem waits before disconnecting when no data is sent or received. The

time period can be set at n = 0 - 255. A setting of zero disables the timer.

As an alternative, the timer may be specified in S-Register S30. This

function is only applicable in buffer mode.

\Xn

XON/XOFF Pass Through

\X0

Modem process XON/XOFF flow control characters

locally (default)

\X1

Not supported; returns ERROR

%B

View Numbers in Blacklist

If blacklisting is in effect, the AT%B command displays the numbers for

which the last call attempted in the past two hours failed. In countries that

do not require blacklisting, this command returns ERROR.

%Cn Data Compression Control

The AT%Cn command determines the operation of V.42bis and MNP

class 5 data compression. Online changes do not take effect until a

disconnect occurs.

%C0

V.42bis/MNP Class 5 compression disabled (no data

compression)

%C1

MNP Class 5 compression enabled (no V.42bis)

%C2

V.42bis compression enabled (no MNP Class 5)

%C3

V.42bis/MNP Class 5 data compression enabled

(default)

-Cn

Data Calling Tone

Data calling tone is a tone of a certain frequency and cadence specified in

V.25 that allows remotes data/fax/voice discrimination. The frequency is

1300 Hz with a cadence of 0.5 seconds on and 2 seconds off.

-C0

Disables calling tone (default)

-C1

Enables calling tone

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