Multi-Tech Systems Modem Module MT3334SMI - Manual (Page 27)

Chapter 2 - AT Commands, S-Registers, and Result Codes
MT3334SMI 27
Command: %DCn AT 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: $Dn DTR Dialing
Values: n = 0 or 1
Default: 0
Description: $D0 Disables DTR dialing.
$D1 Dials the number in memory location 0 when DTR goes high.
Command: +ES=n Enable Synchronous Buffered Mode
Values:
n = 6
Default: None
Description: Allows an H.324 video application direct access to the synchronous data channel. On underflow,
the modem sends HDLC flag idle (0x7E) to the remote modem.·This special error control mode is
overridden by any of the following commands: &F, &M, &Q, or \N.
AT+ES=? shows the only allowed value.
AT+ES? shows the current value.
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<CR> Escape Sequence
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<CR>.
Command: %%%AT<CR>Remote Configuration Escape Sequence
Values:
n/a
Description: Initiates remote configuration mode while online with remote modem. The remote configuration
escape character (%) is defined in register S13.