HP Compaq Presario,Presario 1234 Brochure page 19

Compaq Global Mini PCI 56k (V.90) Modem by 3Com
&Dn Data Terminal Ready (DTR) Control
This command interprets how the modem responds to the state of the DTR signal and
changes to the DTR signal.
&D0
&D1
&D2
Result Codes:
&Fn Load Factory Settings
This command loads the configuration stored and programmed at the factory. This
operation replaces all of the command options and the S-register settings in the active
configuration with factory values.
&F0
&F1
&F2
Result Codes:
&Gn Guard Tone Control
Determines guard tone selection.
&G0
&G1
&G2
Result Codes:
0203-0799-A
Ignore DTR.
Use online command mode.
DTE controls DTR (default).
OK n = 0 - 2.
ERROR Otherwise.
Set the factory profile that uses hardware (RTS/CTS) flow control (this is the
active profile when the modem is shipped).
Set the factory profile that uses hardware (RTS/CTS) flow control.
Set the factory profile that uses hardware (XON/XOFF) flow control.
OK n = 0 - 2
ERROR Otherwise.
Guard tone disabled (default).
Sets guard tone to 550 Hz.
Sets guard tone to 1800 Hz.
OK n = 0 - 2.
ERROR Otherwise.
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