90
ISI5634PCI/4/8 User Guide
%DC1 The modem ignores AT commands.
Note: The modem responds 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 number in memory location 0 when DTR goes high.
Command: $EBn 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
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: #CBAn Callback Attempts
Values: n = 1255
Default: 4
Description: Sets the number of callback attempts allowed after
passwords have been exchanged between modems.·