Nortel M2000 Reference Manual page 88

Table 4 Hayes Keyboard Dialing commands (Sheet 2 of 3)
Command Meaning
O1 Go into the on-line state
Q0 MADO returns result codes (default setting).
Q0 MADO does not return result codes.
Sr Set pointer to Register r.
Sr=n Set Register r to Value n
Sr? Display value stored in Register r.
V0 Display result codes in numeric form.
V1 Display result codes in verbose form (as words)
(default setting).
X0 Enable result codes 0-4.
X1 Enable result codes 0-5, 10-12, and 14.
X2 Enable result codes 0-5, 10-12, and 14.
X3 Enable result codes 0-5, 7, 10-12, and 14 (default
setting).
X4 Enable result codes 0-5, 7, 10-12, and 14 (default
setting).
&CO Assume data carrier is always present. This
command asserts the three EIA control leads CD,
CTS, and DSR. This command is the default if
ASSERTRTS DPOPT is datafilled for MADO.
&C1 CTS, DC, and DSR track far–end RTS. This
command is the default if ASSERTRTS DPOPT is
not datafilled for MADO.
&D0 Ignore DTR. This command is the default if
ASSERTDTR DPOPT is datafilled for MADO.
&D1 Assume command state when the on-to-off
transition of DTR occurs.
Meridian SL-100 M2000 Digital Telephone Reference Manual
Keyboard dialing 21