Data/Fax/Voice Modem User Guide MT5600DSVD, MT5600DSDV2

MultiModemDSVD User Guide 4 AT Commands, S-Registers, and Result Codes
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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>.
VV
VV
V
oo
oo
o
ii
ii
i
cc
cc
c
e Ce C
e Ce C
e C
oo
oo
o
mmmm
mmmm
mm
andsands
andsands
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.