B.26
Appendix
B
Command Function
F
H
L
M
0
Q
s
v
z
Argument (n) n
=
0 or I (default
=
I) Similar to previous
command, but only active when another modem is con
nected. Determines if characters are echoed while online.
FO is on, half-duplex; FI is off, full-duplex.
Argument (n) n
=
0 or I (default
=
0) HO means onhook
or hang up phone; HI means offhook or pick up telephone.
Argument (n) n
=
0 or I (default
=
0) Asks for identifica
tion code.
Argument (n) n
=
0 to 7 (default
=
4) Controls modem's
speaker volume. LO, speaker off; Ll , volume level I;
12,
volume level 2 ;
L3,
volume level 3 ; L4, mid-range volume
level; L5, volume level 5; L6, volume level 6; L7, maximum
volume.
Argument (n) n
=
0, I, or 2 (default
=
I) Controls modem
speaker function. MO, speaker off; MI, speaker on until car
rier is detected; M2, speaker on all of the time.
Causes modem to go offhook in the same mode, originate
or answer, that was being used on previous call.
Argument (n) n
=
0 or I (default
=
0) QO, send result
codes; QI , stay quiet.
Argument (r?) r
=
0 to I2, I6
Lets you read the value of any 14 registers stored in the
modem. These registers are used to set up operating param
eters. See the register summary which follows for registers
and possible values and functions.
Argument (r
=
n) r
=
0 to 12, I6 n
=
0 to 255 Allows
you to modify the value of any of I4 registers.
Argument (n) n
=
0 or I (default
=
1)
VO sends result
codes as digits, VI sends result codes as words.
Resets all commands and registers to default settings.
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