3
. Executive
Priority
NO
N
e
w
registration
?
YES
N
u
m
b
e
r
o
f station
where
Executive
Priority
i
s
registered
Ascertain
s
ig
n
a
l
to
n
e
Ascertain
d
ia
l
to
n
e
N
e
w
registration
finished
Release
?
Number
o
f
station
where
registration
o
f Executive
Priority
i
s
released
Ascertain
signal
tone
Ascertain
d
ia
l
to
n
e
R
e
le
a
s
e
finished
?
YES
Change
?
Number
o
f
s
ta
ti
o
n
where
registration i
s
released
Ascertain
signal
tone
Ascertain
d
ia
l
to
n
e
A
s
c
e
rt
a
in
signal
to
n
e
Number
o
f
station
where
n
e
w
registration
o
f Executive
Priority
i
s
m
a
d
e
Ascertain
dial
tone
Change
f
in
ished
?
RETURN
NO
Remarks: I
n
t
h
e
event
o
f
failure
t
o
touch k
e
y
s
for
correct
dialing,
touch "
C
"
k
e
y
t
o
ascertain
dial
t
o
n
e
a
n
d
re-start
from
t
h
e
beginning.
- -- --
52
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