4 AT Commands, S-Registers, and Result Codes
41
Command: $D
n
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: $EB
n
Asynchronous Word Length
Values: n = 0 or 1
Default: 0
Description: $EB0 Enables 10-bit mode.
$EB1 Enables 11-bit mode.
Command: +ES=
n
Enable Synchronous Buffered Mode
Values: n = 6
Default: None
Description: Allows an H.324 video application direct access to the synchro-
nous data channel. On underflow, the modem sends HDLC
flag idle (0x7E) to the remote modem.·This special error con-
trol 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: #S
x
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 de-
fined in register S13.