Multi-Tech Systems MultiModem USB MT5634ZBA-USB User Manual
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Chapter 3 - AT Commands, S-Registers and Result Codes
commands are enabled, the modem sends DATA to the computer when it detects data tones
and FAX when it detects fax tones. These strings are used by some servers to select the ap-
propriate communication program.
%A0 Disables adaptive answer result codes.
%A1 Enables adaptive answer result codes.
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.
Command: %DCnAT Command Control
Values:
n = 0 or 1
Default:
0
Description: %DC0 The modem responds to AT commands.
%DC1 The modem ignores AT commands.
Note: The modem will respond to AT%DC for 10 seconds after power-up.
Command: %En Fallback and Fall Forward Control
Values:
n = 0, 1, or 2
Default:
2
Description: %E0 Disable fallback and fall forward.
%E1 Enable fallback, disable fall forward.
%E2 Enable fallback and fall forward.
Command: #Sx
Enter Setup Password
Values:
x= password (1–8 characters, case sensitive)
Default:
MTSMODEM
Description:
Enters the remote configuration setup password.
Command: #S=x Store Setup Password
Values:
x= password (1–8 characters, case sensitive)
Default:
MTSMODEM
Description:
Stores a new remote configuration setup password.
Command:
+++AT
Values:
n/a
Description:
Puts the modem in command mode (and optionally issues a command) while remaining online.
Type +++AT and up to ten command characters, then press ENTER. Used mostly to issue the
hang-up command: +++ATH
Command:%%%AT
n/a
Description:
Initiates remote configuration mode while online with remote modem. The remote configuration
escape character (%) is defined in register S13.