Furuno FELCOM 70 Operator's Manual page 151

A T X 4
R
basic message set extended with all of the above.
Default
A T Z
R
resets the Mobile Data Service configuration to last saved command. Also clears
the call if used when in Online Command Mode.
repeats last command.
A /
Re-executes the last AT command string issued to the Mobile Data Service,
including redialing a telephone number.
Extended AT commands
[n]
A T & C R
determines the Data Carrier Detect (DCD) behaviour:
sets DCD always ON.
A T & C 0
R
sets DCD, only when connected. Default.
A T & C 1
R
[n]
A T & D
R
selects the Data Terminal Ready (DTR) behaviour:
the Mobile Data Service ignores DTR.
A T & D 0
R
the Mobile Data Service enters Online Command Mode
A T & D 1
R
when DTR goes inactive.
the Mobile Data Service clears call when DTR goes
A T & D 2
R
inactive. Default.
A T & F R
resets the Mobile Data Service to factory default. The factory default is not
saved as with the AT&W command, so ATZ revokes to last saved values.
6. DATA COMMUNICATION
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