Product data

USRobotics
Command Reference
S-Parameters - 96
S18 - Test Timer
S18 sets the length of time, in seconds, that the modem conducts a test
(commanded by &T1) before returning to the command mode. If this parameter
value is zero, the test will not automatically terminate; the test must be terminated
from the command mode by issuing an &T0 or H command. When S18 is non-
zero, the modem returns the OK message upon test termination.
Range: 0-255 seconds
Default: 0
S28 - Select Pulse Dial/Make/Break Ratio
S28 determines the make/break ratio used during pulse dialing. The S28 value is
also set according to the make/brake ratios in the OEM parameters in the INF file
or according to AT&P command (if it was used). The default is country dependent.
Decimal number corresponding to the selected information.
0 Selects 39%-61% make/break ratio at 10 pulses per second.
(Default.)
1 Selects 33%-67% make/break ratio at 10 pulses per second.
2 Selects 39%-61% make/break ratio at 20 pulses per second.
3 Selects 33%-67% make/break ratio at 20 pulses per second.
Range: 0-3 Default: 2
S29 - Flash Dial Modifier Time
S29 sets the length of time, in units of 10 ms, that the modem will go on-hook
when it encounters the flash (!) dial modifier in the dial string. The time can be
limited as it is a country dependent parameter.
Range: 0-255 10 ms intervals
Default: 70 (700 ms)
S30 - Disconnect Inactivity Timer
S30 sets the length of time, in tens of seconds, that the modem will stay online
before disconnecting when no data is sent or received. In error-correction mode,
any data transmitted or received will reset the timer. In other modes, any data
transmitted will reset the timer. The timer is inoperative in synchronous mode.
Range: 0-255 tens of seconds (0-2550 seconds)
Default: 0 (disabled)