Chapter 4 - AT Commands, S-Registers, Result Codes
19
MultiModemDID User Guide
Command:
&S
n
Data Set Ready (DSR) Control
Values:
n = 0 or 1
Default:
0
Description:
&S0
DSR is always high (on).
&S1
DSR goes high only during a connection.
Command:
&T
n
V.54 Test Commands
Values:
n = 0, 1, 3 or 6
Default:
None
Description:
&T0
Abort. Stops any test in progress.
&T1
Initiates local analog loopback test.
&T3
Initiates local digital loopback test.
&T6
Initiates remote digital loopback test.
Note: To stop a test, you must use the escape sequence (+++AT) before typing
&T0.
Command:
&V
Display Current Settings
Values:
n/a
Description:
Displays the active modem settings, including the callback
security settings if callback security is enabled. If the setup
password has been entered, it also displays the callback
security passwords.
Command:
&W
n Store Current Configuration
Values:
n = 0, 1
Default:
1
Description:
&W0 Stores current modem settings in nonvolatile memory and
causes them to be loaded in place of the factory defaults at
power-on or following the ATZ command. See also the &F
command.
&W1 Clears user default settings from nonvolatile memory and
causes the factory defaults to be loaded at power-on or
following the ATZ command.
Command: &Z
n=x Store Dialing Command
Values:
n = 0, 1, 2 (callback security disabled)
x = Dialing command string
Default:
None
Description:
Stores dialing command
x in memory location y. Dial the stored
number using the command ATDS=
n. See also the #CBSn
command.
Command:
\A
n
Select Maximum MNP Block Size
Values:
n = 0, 1, 2, or 3
Default:
3
Description:
\A0
64-character maximum.
\A1
128-character maximum.
\A2
192-character maximum.
\A3
256-character maximum.
