User manual

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 Baud Rate
Sets the baud rate of the serial port. Settings may range from 300 to 115,200 bits per second. The default baud
rate is 115,200 bps.
 Inter Character Timeout
Sets the Inter Character Timeout from 1 to 65,535 ms.
 DTR
Defines the Data Terminal Ready behavior. Refer to Table XX for DTR descriptions.
Table 7 – DTR Descriptions
AT&D0
Ignore DTR.
AT&D1
If in the Online Data State, upon an on-to-off transition of DTR, the modem enters Online Command
State and issues an OK result code; the call remains connected. Otherwise, ignore DTR.
AT&D2
If in the Online Data State or Online Command State upon an on-to-off transition of DTR, the modem
performs an orderly clear-down of the call and returns to the command state. Automatic answer is
disabled while DTR remains off.
AT&D4
The modem auto-dials the default remote station upon an off-to-on transition of DTR and enters the
Online Data State. The modem ends the call and enters the command state upon an on- to-off
transition of DTR.
AT&D5
The modem auto-dials the default remote station upon an on-to-off transition of DTR and enters the
Online Data State. The modem ends the call and enters the command state upon an off-to-on transition
of DTR.
AT&D6
Upon an on-to-off transition of DTR, the modem performs an orderly clear-down of any session and
turns OFF the RF module. Upon an off-to-on transition of DTR, the modem turns ON the RF module and
reestablishes the radio session.
AT&D7
Upon an on-to-off transition of DTR, the modem performs an orderly clear-down of any session and
turns OFF the RF module. Upon an off-to-on transition of DTR, the modem turns ON the RF module and
reestablishes the radio session.
AT&D8
The modem auto-dials the default remote station upon determining DTR is OFF and enters the Online
Data State. The modem ends the call and enters the command state upon determining DTR is ON.
AT&D9
The modem auto-dials the default remote station upon determining DTR is ON and enters the Online
Data State. The modem ends the call and enters the command state upon determining DTR is OFF.
 Flow Control
Sets the Flow Control to None or Hardware control
 DSR
Sets the Data Set Ready to Always On, On When Available, On When Connected or Always Off. The DSR parameter
determines how the modem controls the state of the Data Set Ready circuit. The default value is Always Off.
― Always On: DSR is always on.
― On When Available: DSR is on when the RF signal present and phone registered on network.
― On When Connected: DSR is on when connected to CDMA.
― Always Off: DSR is always off.