Optus S2 User Manual page 16

2 PLACING A CALL
Table 4: Accepted Hayes AT Data Terminal Commands
Command Description
AT&K3 CTS flow control
AT&K4 Software flow control
AT&K6 CTS & Software flow control
AT&V Displays current configuration and stored profile
AT&Y0 Optus MobileSat S2 will use modem profile 0
AT&Y1 Optus MobileSat S2 will use modem profile 1
AT&W0 Store current configuration in profile 0
AT&W1 Store current configuration in profile 1
AT&Zn = x Save dial number (where n = 0, 1, 2 or 3, x =
PSTN number)
Optus MobileSat S2 Default Modem Settings
Active Modem Profile:
ATE1 Enable echo of commands
ATQ0 Enable result code
ATV1 Returns the result code in text mode
AT&D0 Modem ignores DTR
AT&Y0 Optus MobileSat S2 will use modem profile 0
S–Registers
ATSn Sets and reads the selected register
ATSn=x Set the register n to the value x
ATSn? Reads the value of register n
MOBILESAT S2 Default S–Register Settings
Register 0 = 2 Automatic answer after 2 rings
Register 2 = 43 Escape sequence character '+'
Register 3 = 13 CR = carriage return
Register 4 = 10 CTRL-J = line feed character
Register 5 = 8 CTRL-H = backspace
Register 12 = 50 Escape sequence guard time (in Secs)
Register 25 = 10 Loss of DTR (in x100mSecs)
(continued)
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2 PLACING A CALL
DATA TERMINAL READY settings
The Optus MobileSat S2 modem by default ignores DTR. To
configure the Optus MobileSat S2 to hangup on DTR drop and
then return to command mode, enter the AT command
'AT&D2S25=10'. This setting can be saved using AT&W, and will
remain in memory provided you power down the Optus MobileSat
S2 with the PWR button on the handset.
Table 5: Terminal Response
Displays Description
OK Data Communications between PC + Optus
MobileSat S2 is established. Command has
been processed satisfactorily.
No Carrier The Optus MobileSat S2 is not in a state where
data calls can be established (e.g.: No Services).
Busy The Optus MobileSat S2 is in a call or cannot set
up a data call since the channel is not available.
The destination number may also be busy.
Error The command to the Optus MobileSat S2 has
not been performed satisfactorily.
Connect XXXX Indicates that the call has been established and
(after a short delay) data transfer can proceed.
Ring This indicates that an incoming data call is
ringing the local terminal.
The handset display will indicate that the transceiver is currently
being used for a data call and will not allow interruption to the
call.
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