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4 AT Commands, S-Registers, and Result Codes
30
MultiModemZPX User Guide
Command: \N
n
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: \Q
n
Flow Control Selection
Values: n = 0, 1, or 3
Default: 3
Description: \Q0 Disables flow control (same as &K0).
\Q1 XON/XOFF software flow control (same as &K4).
\Q3 RTS/CTS hardware flow control (same as &K3).
Command: \T
n
Inactivity Timer
Values: n = 0, 1–255
Default: 0
Description: \Tn Sets the time (in minutes) that the modem waits after the last
character is sent or received before it disconnects. 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: \V
n
Protocol Result Code
Values: n = 0, 1, or 2
Default: 1
Description: \V0 Disables the appending of the protocol result code to the DCE
speed.
\V1 Enables the appending of the protocol result code to the DCE
speed.
\V2 Same as \V1.
Command: \X
n
XON/XOFF Pass-Through
Values: n = 0 or 1
Defaults: 0
Description: \X0 Modem responds to and discards XON/XOFF characters.