Multitech MultiModemDSVD User Manual page 40

MultiModemDSVD User Guide
Command:
Values:
Default:
Description:
Command:
Values:
Default:
Description:
Command:
Values:
Default:
Description:
32
&D n Data Terminal Ready (DTR) Control
n = 0, 1, 2, or 3
2
This command interprets the high to low transition of the DTR
signal from the computer according to the supplied parameter.
The action taken depends on the current &Q setting.
&D0 &Q0, &Q5, &Q6: DTR is ignored (assumed high). Allows op-
eration with computers that do not provide DTR.
&Q1, &Q4: DTR drop causes the modem to hang up.
Autoanswer is not affected.
&Q2, &Q3: DTR drop causes the modem to hang up.
Autoanswer is inhibited.
&D1 &Q0, &Q1, &Q4, &Q5, &Q6: DTR drop is interpreted by the
modem as if the asynchronous escape sequence had been en-
tered. The modem returns to asynchronous command state
without disconnecting.
&Q2, &Q3: DTR drop causes the modem to hang up.
Autoanswer is inhibited.
&D2 &Q0–&Q6: DTR drop causes the modem to hang up.
Autoanswer is inhibited.
&D3 &Q0, &Q1, &Q4, &Q5, &Q6: DTR drop causes the modem to
perform a soft reset as if the Z command were received. The &Y
setting determines which profile is loaded.
&Q2, &Q3: DTR drop causes the modem to hang up.
Autoanswer is inhibited.
&Q5 or &Q6 and +FCLASS=1 or +FCLASS=2: Same as for &Q0.
&F n Load Factory Settings
n = 0 or 1
None
&F0 Load factory configuration 0.
&F1 Load factory configuration 1.
Note: See also the Z command.
&G n V.22bis Guard Tone Control
n = 0, 1, or 2
0
&G0 Disable guard tone.
&G1 Set guard tone to 550 Hz.
&G2 Set guard tone to 1800 Hz.
Note: The &G command is not used in North America.