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S30
Inactivity Timer
Unit: 1 minute
Range: 0, 1–255 minutes
Default: 0 (disabled)
S30 can be used to cause the modem to disconnect if no data is transmitted or received for
a specified time. S30 runs during both reliable and non-error correction connections. The
timer restarts any time a data character passes through the serial port (either sent or
received). If noise on the phone line causes an error to be received during non-error
correction mode, this also will restart the S30 timer. The factory default of zero disables the
timer.
S32
Time Lapse for Escape Sequence
Unit: 100 ms
Range: 0–255
Default: 20 (2 seconds)
S32 sets the time period to validate the escape sequence. If the S32 time interval expires
before you press ENTER, then the escape sequence is aborted. The default is two seconds.
S34
Command Buffer Length After Online Escape Sequence
Unit: Decimal
Range: 0–60
Default: 10
Sets the number of characters allowed in an AT command after an in-band online escape
(+++ method). If the number of characters after "AT" exceeds the S34 buffer length value,
then the buffer is flushed and the escape sequence is aborted.
S36
DTR Busy-Out Time
Unit: 1 second
Range: 0–255
Default: 0 (disabled)
S36 sets the time between when DTR goes inactive and when the modem goes off-hook.
The DTR busy-out feature is disabled when S36 is set to 0.
Normally, when the DTR signal from the computer goes inactive, the modem goes on-hook
after a time that is set by S25. If S36 is set for a non-zero time, the modem then waits for the
time set by S36; if DTR has not gone active again in that time, the modem goes off-hook,
causing a busy signal for callers. The busy-out state ends when DTR goes active again.
S37
DTR Busy-In Time
Unit: 1 second
Range: 0–255
Default: 5
S37 sets the time between when DTR goes active and when the modem goes on-hook, if
S36 has caused it to go off-hook.
Chapter 4 - S-Registers
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