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Chapter 2
Result
codes
The
Modem
sends the
result
codes
to report
you
its
status
or telephone
line
condition.
Tfeble
3.
Result
Codes
Code
NO NUMBER
DIALING
...
RINGING
BUSY
REORDER TONE
NO ANSWER
NO
DIAL
TONE
CONNECT
CONNECT
1200
NO
CARRIER
DISCONNECT
WAITING
FOR
RING
RING
Meaning
The
command
input
is
invalid.
There's
no number
to
be
dialed
in
the
memory.
Modem
is
dialing
the
number
that follows.
Ringback
tone
detected.
Busy
signal detected.
Reorder tone
detected.
Call
was
not
answered
after
8
ringback
tones.
No
dial
tone detected*
Detects
carrier
at
300
bps.
Modem
goes on
line.
Detects
carrier at
1200 bps and
Modem
goes
on
line.
Does
not receive
carrier
or
lost
it.
Goes
on
hook
after
connecting.
Modem
is
monitoring the telephone
line for
a
ring signal.
Detects
an incoming
ring signal
on
the
tele-
phone
line.
*
Modem
waits
for
dial
Refer
to
D
command
tone only
when
W
(a dialer
code) follows D.
in
Appendix
A.
27
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