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If the modem is in facsimile mode (+FCLASS=1) , the only message sent to indicate a
connection is CONNECT without a speed indication.
X0/X
CONNECT result code is given upon entering online data state. Dial tone and busy
detection are disable.
X1
CONNECT<text> result code is given upon entering online data state. Dial tone and
busy detection are disable.
X2
CONNECT<text> result code is given upon entering online data state. Dial tone
detection is enabled, and busy detection is disable.
X3
CONNECT<text> result code is given upon entering online data state. Dial tone
detection is disabled, and busy detection is enable.
X4
CONNECT<text> result code is given upon entering online data state. Dial tone and
busy detection are enable.(Default)
Z
Reset
Zn, which must be placed at the end of the command line, resets the active configuration of the modem
to the stored configuration saved in nonvolatile RAM, hangs up the modem, and clears the command
buffer.
Z0/Z
Resets the modem and loads stored configuration 0.
Z1
Resets the modem and loads stored configuration 1.
4.1.2 Commands Preceded by &
&Cn
Select DCD Options
&C0/&C
Maintains an ON status for the Data Carrier Detect (DCD).
&C1
Uses the actual state of the carrier from the remote modem for DCD. (Default)
&Dn
Select DTR Options
Determines actions taken by the modem in relation to the Data Terminal Ready (DTR) signal of the
serial port.
&D0/&D
DTR is ignored. Allows operation with DTEs that do not provide DTR.
&D1
DTR drop is interpreted by the modem as if the escape sequence has been entered.
The modem returns to the command state without disconnecting.
&D2
DTR drop causes the modem to hang up. Auto answer is inhibited. (Default)
&D3
DTR drop causes the modem to perform a soft reset as if the Z command were
received.
&F
Fetch Factory Configuration
&F
Load Factory Setting.
&Gn
Select Guard Tone
&G0/&G
Disable guard tone. (Default)
&G1
Select 550Hz-guard tone.
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