57
The second case is where the modem is in the on-line command state (waiting for AT
commands) during a data connection, and the \B is received in order to send a break
to the remote modem:
d
n
a
m
m
o
C
t
c
e
ff
E
0
K
\
.
m
e
d
o
m
e
t
o
m
e
r
o
t
k
a
e
r
b
d
n
e
s
d
n
a
s
r
e
ff
u
b
a
t
a
d
r
a
e
l
C
1
K
\
.
m
e
d
o
m
e
t
o
m
e
r
o
t
k
a
e
r
b
d
n
e
s
d
n
a
s
r
e
ff
u
b
a
t
a
d
r
a
e
l
C
).
0
s
a
e
m
a
S
(
2
K
\
.
y
l
e
t
a
i
d
e
m
m
i
m
e
d
o
m
e
t
o
m
e
r
o
t
k
a
e
r
b
d
n
e
S
3
K
\
s
a
e
m
a
S
(
.
y
l
e
t
a
i
d
e
m
m
i
m
e
d
o
m
e
t
o
m
e
r
o
t
k
a
e
r
b
d
n
e
S
).
2
4
K
\
.
a
t
a
d
h
ti
w
e
c
n
e
u
q
e
s
n
i
m
e
d
o
m
e
t
o
m
e
r
o
t
k
a
e
r
b
d
n
e
S
5
K
\
.
a
t
a
d
h
ti
w
e
c
n
e
u
q
e
s
n
i
m
e
d
o
m
e
t
o
m
e
r
o
t
k
a
e
r
b
d
n
e
S
)t
l
u
a
f
e
D
(
).
4
s
a
e
m
a
S
(
The third case is where a break is received from a remote modem during a connec-
tion:
d
n
a
m
m
o
C
t
c
e
ff
E
0
K
\
.
E
T
D
e
h
t
o
t
k
a
e
r
b
d
n
e
s
d
n
a
s
r
e
ff
u
b
a
t
a
d
r
a
e
l
C
1
K
\
e
m
a
S
(
.
E
T
D
e
h
t
o
t
k
a
e
r
b
d
n
e
s
d
n
a
s
r
e
ff
u
b
a
t
a
d
r
a
e
l
C
).
0
s
a
2
K
\
.
E
T
D
o
t
y
l
e
t
a
i
d
e
m
m
i
k
a
e
r
b
a
d
n
e
S
3
K
\
).
2
s
a
e
m
a
S
(
.
E
T
D
o
t
y
l
e
t
a
i
d
e
m
m
i
k
a
e
r
b
a
d
n
e
S
4
K
\
.
E
T
D
o
t
a
t
a
d
d
e
v
i
e
c
e
r
h
ti
w
e
c
n
e
u
q
e
s
n
i
k
a
e
r
b
a
d
n
e
S
5
K
\
.
E
T
D
o
t
a
t
a
d
d
e
v
i
e
c
e
r
h
ti
w
e
c
n
e
u
q
e
s
n
i
k
a
e
r
b
a
d
n
e
S
)t
l
u
a
f
e
D
()
.
4
s
a
e
m
a
S
(
Result Codes:
K
O
,
4
,
3
,
2
,
1
,
0
=
n
5
R
O
R
R
E
e
s
i
w
r
e
h
t
O