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Appendix F – Modem AT Commands
Command:
\Kn
Break Control
Values:
n = 0–5
Default:
5
Description:
Controls the modem's response to a break received from: computer, remote modem, or \B
command. Response is different for each of three different states.
Data mode. Modem receives the break from the computer:
\K0
\K1
\K2
\K3
\K4
\K5
Data mode. Modem receives the break from the remote modem:
\K0
\K1
\K2
\K3
\K4
\K5
Online command mode. Modem receives a \Bn command from the computer:
\K0
\K1
\K2
\K3
\K4
\K5
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 Same as N0.
\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
\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:
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:
Command:
\Vn
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.
60
Enter online command mode, no break sent to the remote modem.
Clear data buffers and send break to the remote modem.
Same as \K0.
Send break immediately to the remote modem.
Same as \K0.
Send break to the remote modem in sequence with the transmitted data.
Clear data buffers and send break to the computer.
Same as \K0.
Send break immediately to the computer.
Same as \K2.
Send break to the computer in sequence with the received data.
Same as \K4.
Clear data buffers and send break to the remote modem.
Same as \K0.
Send break immediately to the remote modem.
Same as \K2.
Send break to the remote modem in sequence with the transmitted data.
Same as \K4.
correction mode, then in MNP mode, and finally in non-error correction (buffer) mode
with continued operation.
You can also set the inactivity timer by changing the value of S30.
Multi-Tech Systems, Inc. MultiAccess User Guide
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