Filter
Top Products
Chapter 2 – AT Commands
Multi-Tech Systems, Inc. AT Commands Reference Guide (S000273F) 13
Command: \Kn Break Control
Values: n = 0–5
Default: 5
Description: Controls the response of the modem to a break received from the computer, the remote
modem, or the \B command. The response is different for each of three different states.
Data mode. The modem receives the break from the computer:
\K0 Enter online command mode; no break sent to the remote modem.
\K1 Clear data buffers and send break to the remote modem.
\K2 Same as \K0.
\K3 Send break immediately to the remote modem .
\K4 Same as \K0.
\K5 Send break to the remote modem in sequence with the transmitted data.
Data mode. The modem receives the break from the remote modem during a non-error-
corrected connection:
\K0 Clear data buffers and send break to the computer.
\K1 Same as \K0.
\K2 Send break immediately to the computer.
\K3 Same as \K2.
\K4 Send break to the computer in sequence with the received data.
\K5 Same as \K4.
Online command mode. The modem receives a \Bn command from the computer:
\K0 Clear data buffers and send break to the remote modem.
\K1 Same as \K0.
\K2 Send break immediately to the remote modem.
\K3 Same as \K2.
\K4 Send break to the remote modem in sequence with the transmitted data.
K5 Same as \K4.
Command: \Nn Error Correction Mode Selection
Values: n = 0–5
Default: 3
Description: \N0 Normal (non-error correction) mode with data buffering. Forces &Q6.
\N1 Direct mode. Equivalent of &M0 and &Q0 modes. Forces &Q0.
\N2 V.42/MNP reliable (error-correction) mode. Modem attempts first a V.42
connection and then an MNP connection. Failure to make a reliable connection
results in the modem hanging up. Forces &Q5, S36=4, and S48=7.
\N3 V.42/MNP auto-reliable mode. Modem attempts first to connect in V.42 mode,
then in MNP mode, and finally in non-error-correction mode with data buffering.
Forces &Q5, S36=7, and S48=7.
\N4 V.42 (LAPM) reliable mode. If modem cannot make a V.42 connection, it
disconnects. Forces &Q5 and S48=0. Note: -K1 can override \N4.
\N5 MNP reliable mode. If the modem cannot make an MNP connection, it
disconnects. Forces &Q5, S36=4, and S48=128.
Command: \Vn Single Line Connect Message
Values: n = 0 or 1
Default: 0
Description: \V0 Disables single line connect message. CONNECT messages are controlled by
the X, W, and S95 settings.
\V1 Enables single line CONNECT. Formatted: CONNECT <Serial PortSpeed>
</Modulation></Protocol></Compression></Line Speed>/<Voice and Data>.
Overrides X, W, and S95 commands. CONNECT messages display in the single
line format subject to V and Q. In non-verbose mode (V0), single line CONNECT
messages are disabled and a single numeric result code is generated.
Command: +FCLASS= Display Current Fax Class
Values: 0, 1, 2, 8
Default: None
Description: 0 Data
1 Fax – Class 1, Class 1.0
2 Fax – Class 2, 2.0, 2.1
8 Voice Commands