Multitech Modem Module MT3334SMI, Developer'S Manual

Page: 26 / 74

ModemModule Developer’s Guide
MT3334SMI 26
Command: \Nn Error Correction Mode Selection
Values: n = 0–5, or 7
Default: 3
Description: \N0 Non-error correction mode with data buffering (buffer mode; same as &Q6).
\N1 Direct mode.
\N2 MNP reliable mode. If the modem cannot make an MNP connection, it disconnects.
\N3 V.42/MNP auto-reliable mode. The modem attempts first to connect in V.42 error correction mode,
then in MNP mode, and finally in non-error-correction (buffer) mode with continued operation.
\N4 V.42 reliable mode.If the modem cannot make a V.42 connection, it disconnects.
\N5 V.42, MNP, or non-error correction (same as \N3).
\N7 V.42, MNP, or non-error correction (same as \N3).
Command: \Qn Flow Control Selection
Values: n = 0, 1, or 3
Default: 3
Description: \Q0 Disable flow control (same as &K0).
\Q1 XON/XOFF software flow control (same as &K4).
\Q2 CTS-only flow control. Not supported.
\Q3 RTS/CTS hardware flow control (same as &K3).
Command: \Tn Inactivity Timer
Values: n = 0, 1–255
Default: 0
Description: \Tn Sets the time (in minutes) after the last character is sent or received that the modem waits before
disconnecting. A value of zero disables the timer. Applies only in buffer mode.
Note: You can also set the inactivity timer by changing the value of S30.
Command: \Vn Protocol Result Code
Values: n = 0, 1, or 2
Default: 1
Description: \V0 Disable the appending of the protocol result code to the DCE speed.
\V1 Enable the appending of the protocol result code to the DCE speed.
\V2 Same as \V1.
Command: \Xn XON/XOFF Pass-Through
Values: n = 0 or 1
Defaults: 0
Description: \X0 Modem responds to and discards XON/XOFF characters.
\X1 Modem responds to and passes XON/XOFF characters.
Command: -Cn Data Calling Tone
Values: n = 0 or 1
Defaults: 0
Description: -C0 Disable V.25 data calling tone to deny remote data/fax/voice discrimination.
-C1 Enable V.25 data calling tone to allow remote data/fax/voice discrimination.
Command: %B View Numbers in Blacklist
Values: n/a
Description: If blacklisting is in effect, AT%B displays the numbers for which the last call attempted in the
previous two hours failed. In countries that do not require blacklisting, the ERROR result code
appears.
Command: %Cn Data Compression Control
Values: n = 0 or 1
Default: 1
Description: %C0 Disable V.42bis/MNP 5 data compression.
%C1 Enable V.42bis/MNP 5 data compression.