General            General information
 +++                Escape to command mode
 &C                 DCD control
 &D                 Response to DTR
 &F                 Fetch factory configuration
 &G                 Guard tones
 &J                 Phone jack type
 &P                 Pulse-dial make/break ratio
 &S                 DSR handling
 &T                 Modem test modes
 &W                 Write settings to NOVRAM
 &Z                 Store phone number in NOVRAM
 A                  Answer phone
 A/                 Repeat last command
 AT                 Command prefix
 B                  Bell/CCITT protocol
 D                  Dial phone
 E                  Command echo
 H                  Hang up connection
 I                  Internal information
 L                  Speaker volume
 M                  Speaker control
 O                  Go back online
 Q                  Disable result codes
 S                  S-registers
 V                  Text or numeric result codes
 X                  Extended result codes
 Y                  Long space disconnect
 Z                  Reset modem