Multi-Tech Systems MT5600DSDV2 User Manual
Page 44
MultiModemDSVD User Guide
4 AT Commands, S-Registers, and Result Codes
44
Multi-Tech Systems, Inc.
Command:
$SB
n
Serial Port Baud Rate
Values:
n = speed in bits per second
Default:
57600
Description: $SB300
Set serial port to 300 bps.
$SB1200
Set serial port to 1200 bps.
$SB2400
Set serial port to 2400 bps.
$SB4800
Set serial port to 4800 bps.
$SB9600
Set serial port to 9600 bps.
$SB19200
Set serial port to 19200 bps.
$SB38400
Set serial port to 38400 bps.
$SB57600
Set serial port to 57600 bps.
$SB115200 Set serial port to 115200 bps.
$SB230400 Set serial port to 230400 bps.
Note:
See also the L5 command.
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>.
V
V
V
V
Vo
o
o
o
oiiiiic
c
c
c
ce C
e C
e C
e C
e Co
o
o
o
omm
mm
mm
mm
mmands
ands
ands
ands
ands
The MultiModemDSVD uses DSVD technology to achieve simultaneous voice and
data operation over a telephone line. Establishing a DSVD connection is like estab-
lishing a regular data modem connection. Initiate the call to another DSVD modem
using normal dialing (ATD) and answering (ATA) procedures. The modem can
switch from a regular phone conversation into DSVD mode and back to phone con-
versation. A headset or microphone/speaker can be used for voice communication
during DSVD mode.
Command:
-SMS=
n
Data/DSVD Mode
Values:
n = 0, 1,
or 3
Default:
3
Description: -SMS=0 Data mode.
-SMS=1 DSVD mode.
-SMS=3 Automatic mode select (data/DSVD)
Note:
DSVD mode can be enabled by either the -SSE=1 or the
-SMS=1
command, and disabled by either -SSE=0 or -SMS=0.