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6-20 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