57
-Cn
Data Calling Tone
Data Calling Tone is a tone of certain frequency and cadence as specified in V.25
which allows remote Data/FAX/Voice discrimination. The frequency is 1300 Hz with
a cadence of .5 s on and 2 s off.
d
n
a
m
m
o
C
t
c
e
ff
E
0
X
\
s
r
e
t
c
a
r
a
h
c
l
o
rt
n
o
c
w
o
lf
F
F
O
X
/
N
O
X
s
e
s
s
e
c
o
r
p
m
e
d
o
M
)t
l
u
a
f
e
d
(
y
ll
a
c
o
l
1
X
\
l
o
rt
n
o
c
w
o
lf
F
F
O
X
/
N
O
X
s
s
a
p
d
n
a
s
e
s
s
e
c
o
r
p
m
e
d
o
M
s
r
e
t
c
a
r
a
h
c
Result Codes:
K
O
1
,
0
=
n
R
O
R
R
E
e
s
i
w
r
e
h
t
O
%B
View Numbers in Blacklist
If blacklisting is in effect, this command displays the numbers for which the last call
attempted in the past two hours failed. The ERROR result code appears in countries
that do not require blacklisting.
%Cn
Enable/Disable Data Compression
Enables or disables data compression negotiation on an error corrected link.
d
n
a
m
m
o
C
t
c
e
ff
E
0
C
%
n
o
i
s
s
e
r
p
m
o
c
a
t
a
d
s
e
l
b
a
s
i
D
1
C
%
n
o
i
s
s
e
r
p
m
o
c
a
t
a
d
5
P
N
M
d
n
a
s
i
b
2
4
.
V
h
t
o
b
s
e
l
b
a
n
E
Result Codes:
K
O
1
,
0
=
n
R
O
R
R
E
e
s
i
w
r
e
h
t
O
Содержание Plug n' Play Voice/Fax Modem V.90 ISA
Страница 1: ...V 90 ISA Plug n Play Voice Fax Modem User s Manual...
Страница 73: ...73...
