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TABLE 2
PROGRAMMABLE OPTIONS
Option
Function (example)
Default
Range
C
Turns the modem's
carrier signal on and
off. (ATC1)
E
Controls whether the
command characters
you type are "echoed''
or displayed on your
screen. (ATE1)
H
Connects and discon¬
nects the modem to
the telephone line.
(ATHO)
I
Prompts the modem
to display a product
code or checksum.
(ATIO)
M
Controls the modem's
speaker. (ATM1)
Q
Controls whether
modem messages are
displayed on your
screen. (ATQO)
V
Controls whether
modem messages are
displayed in words or
numbers. (ATV1)
X
Determines which set
of modem messages
the modem will send.
(ATXO)
1
0 = off
1 = on
1
0 = not echoed
1 - echoed
0
0 = on hook
(automatic)
1 = off hook
(manual)
1
0 = product code
1 = checksum
1
0 - always off
1 = on until a carrier
signal is detected
2 = always on
0
0 = displayed
1 - not displayed
1
0 - numbers
t = words
0
0 = basic set
1 = extended set
4 = BUSY and NO
DIALTONE
messages
22
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