Extended At Commands - IBM Aptiva Handbook

      
Table 3: Extended AT commands
Command Function
&C0 Carrier Detect (CD) always on
&C1 Turn on CD when remote carrier is present
&D0 DTR signal ignored
&D1 Modem returns to Command Mode after DTR toggle
&D2 Modem hangs up and returns to the command mode after DTR toggle
&F Load factory default configuration
&G0 Guard tone disabled
&G1 550 Hz guard tone enabled
&G2 1800 Hz guard tone enabled
&V View active profiles
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Appendix B: Modem information