Optus S2 User Manual page 15

2 PLACING A CALL
During a data call, the handset display will indicate that the
transceiver is currently being used via the "Data Port in Use"
display. Refer to Table 3 below for a full list of handset displays
during a data call.
Upon completion of your data transfer, the call can be hung up
by either typing the escape sequence '+++' followed by 'ath', or
by dropping the DTR line (provided that the
configured to monitor DTR status See page 20.) The call can also
be terminated through the handset by pressing the
keys.
The behaves transparently to the data
Optus MobileSat S2
terminal. Once the data terminal hangs up the call, the
will cleardown the satellite channel.
MobileSat S2
DATA Operation (receiving).
For information on receiving data calls, see "Receiving a DATA
Call" on page 26.
Table 3: Handset Displays during a Data Call
Displays Description
Standby Normal idle mode for the
S2 , will be observed at the beginning and
the end of a call.
Data Port Started Outgoing Data call initiated.
IC DAT/FAX Incoming Data call
Started
Data Port In Use Data call in progress (Transmit/Receive)
Data Port Clearing Data call clearing (Transmit/Receive)
Data Port Ended Data call clearing (Transmit/Receive)
Table 4: Accepted Hayes AT Data Terminal Commands
Command Description
A/ Re-execute command; can be used to place
another call of the previous call failed
ATA Phone off hook to answer incoming call
Optus MobileSat S2
FCN END
Optus
Optus MobileSat
18
2
Table 4: Accepted Hayes AT Data Terminal Commands
Command
AT
ATDTn
ATH
is
ATDL
ATDSn
ATE0
ATE1
ATI0
ATI1
ATI2
ATI3
ATI4
ATI5
ATI6
ATI255
ATMn
ATQ0
ATQ1
ATV0
ATV1
ATZ
ATO
ATSn
AT&D0
AT&D2
AT&F0
AT&F1
AT&K0
PLACING A CALL
Description
This will return an OK or ERROR message
Dial the number n.
Go on hook, hang up
Redial the last number
Redial any stored number (where n=0, 1, 2 or 3)
Disable echo of commands
Enable echo of commands
Report Product code
Precomputed checksum
Report 'OK'
Report firmware version
"MT-S2". Report internal code revision
Report Country Code
Report Internal code revision
Reports software build date
Set speaker volume (n = 0 – 3)
Enable result code (OK or ERROR)
Disable result code, quite mode
Returns the result code in numerical form
Returns the result code in text form
Soft reset and restore default configuration
Return to data mode from command mode
(only if on-line)
Altering S-registers; (see S-registers list)
Modem ignores DTR (Data Terminal Ready)
Modem hangs up on DTR drop and goes to
command mode
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No flow control
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(continued)