User's Manual

\T – Set Inactivity Timer
During a buffer (normal) or reliable connection, if no data is sent or received
within the inactivity time period, the link is disconnected. The default, ’0’,
disables this feature.
AT\T0-90 Length in minutes
AT\T0 Disables inactivity timer (factory setting)
\X – Set XON/XOFF Pass Through
If software flow control is enabled (\Q1), this command defines whether the
XON (11h) and XOFF (13h) characters received from the DTE are sent to
remote modem. In addition, if the modem port flow control is enabled (\G1) in
normal mode, the command specifies whether the XON and XOFF characters
received from the remote modem are sent to the DTE. In both cases, flow
control operation is not affected.
AT\X0 Processes flow control characters (factory setting)
AT\X1 Processes flow control characters and passes them through to the
local or remote so they can process the characters.
-J — Set V.42 Detect Phase
In V.42 modes (\N3, \N4) this command specifies whether the modem detects
V.42, MNP, or no error-connection protocols from the remote modem and
changes to the appropriate mode. Otherwise, only V.42 is attempted.
AT-J0 Disables V.42 detect phase
AT-J1 Enables V.42 detect phase (factory setting)
%C – MNP 5 Data Compression Control
This command controls whether the data sent during the MNP frames is
compressed using MNP Class 5 compression standard. MNP 5 data
compression can improve throughput by as much as 150%.
AT%C0 No compression
AT%C1 MNP Class 5 compression (factory setting)
=> Where files selected for transmission are compressed, the speed of
transmission is reduced with MNP5 or V.42 Protocols.
AT COMMANDS: DATA MODEM 2-19