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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.
Syntax
X[<value>]
Defined Values
<value> Decimal number corresponding to the selected option.
0 CONNECT result code is given upon entering online data state. Dial tone and
busy detection are disabled.
1 CONNECT <text> result code is given upon entering online data state. Dial tone
and busy detection are disabled.
2 CONNECT <text> result code is given upon entering online data state. Dial tone
detection is enabled, and busy detection is disabled.
3 CONNECT <text> result code is given upon entering online data state. Dial tone
detection is disabled, and busy detection is enabled.
4 CONNECT <text> result code is given upon entering online data state. Dial tone
and busy detection are both enabled. (Default.)
Result Codes
OK <value> = 0 to 4.
ERROR Otherwise.
3.2.2.5 &C - RLSD Behavior
This parameter determines how the state of the Received Line Signal Detector (RLSD)
output relates to the detection of received line signal from the distant end. Changing the
parameter will take effect immediately in both the command and online command states.
In &C1 mode of operation, RLSD is not turned off until all data previously received from
the remote modem is delivered to the local DTE. However, such buffered data will be
discarded and RLSD will be turned off if the DTE turns off DTR (if &D1 or &D2 is set).
Syntax
&C[<value>] <value> = 0 or 1.
Defined Values
<value> Decimal number corresponding to the selected option.
0 RLSD is always ON.
1 RLSD follows the state of the carrier. (Default.)
Result Code
OK <value> = 0 or 1
ERROR Otherwise.
3.2.2.6 &D - DTR Behavior
This parameter determines how the modem responds when the Data Terminal Ready
(DTR) input is changed from the ON to the OFF condition during online data state.
Syntax
&D[<value>] <value> = 0 - 2.
Defined Values
<value> Decimal number corresponding to the selected option.
0 Modem ignores DTR.
1 Upon an on-to-off transition of DTR, the modem enters online command state and
issues an OK result code; the call remains connected.
2 Upon an on-to-off transition of DTR, the modem instructs the underlying modem
to perform an orderly cleardown of the call. The disposition of any data in the
modem pending transmission to the remote modem is controlled by the +ETBM
parameter; otherwise, this data is sent before the call is cleared, unless the
remote modem clears the call first (in which case pending data is discarded). The
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