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30
Default: 50 (1 second)
S25 Detect DTR Change
S25 defines the minimum amount of time that DTR has to remain off before the
modem performs the function specified by the &Dn command. A change in DTR
that persists for a shorter time than that specified will be ignored by the modem.
Range: 1-255 1/100 of a second
Default: 5 (1/20 of a second)
S30 Disconnect Inactivity Timer
This register sets the length of time that the modem stays on-line/off-hook before
disconnecting when no data is being sent or received.
Range: 1-255 minutes
Default: 1 minute
S33 Sleep Mode Timer
S33 determines when the modem enters sleep or power-down mode. When en-
abled ( any value other than zero), the controller enters sleep mode whenever the
modem has been inactive for a user-programmed time delay. The modem exits
sleep mode whenever the host computer reads or writes to the modem or when a
ring signal is detected.
Range: 0-90 seconds
Default: 0 (disabled)
S37 Maximum Line Speed Attempted
This register sets the maximum line speed allowed. S37 provides the same infor-
mation as the AT+MS=m command. Using the +ms=m parameter automatically
changes the value of S37. For example, setting AT+MS=0 sets S37 to 0 (zero).
Using the AT+MS=m command to change the value of S37 provides greater flex-
ibility than changing the S register directly. See the AT+MS=m command for more
information.