User`s manual
4,291,198
13
FIG.
7
against
the
lower
tips
of
bezel
115
to
press
the
bezel
and
tube 14
toward
the
left
and
thereby
similarly
de?ect
the
frame
119
sufficiently
to
allow
the
right
edge
of
the
keyboard
to
be
snapped
into
the
base
11.
This
arrangement
interlocks
the
keyboard
20,
screen
13,
bezel
115,
and
hood
12
in
position
so
that
they
are
rela
tively
immovable.
In
its
rest
position,
the
keyboard
with
its
finite
thick
ness
is
unable
to
pivot
freely
out
of
the
base
portion
11
because
of
the
pressure
applied
by
the
de?ected
frame
119
through
the
cathode
ray
tube.
However,
the
key
board
is
advantageously
separately
removable
by
insert
ing
a
blade
type
member
(not
shown)
through
a
housing
aperture
127
to
force
the
front
edge
of
the
keyboard
upward
and
thereby
additionally
de?ect
the
frame
119
by
an
amount
which
is
sufficient
to
permit
removal
of
the
keyboard
without
first
removing
the
hood
12
and
bezel
115.
It
is
now
evident
that
a
user
of
the
illustrative
em
bodiment
herein types
messages
to
control
processor
43
and
a
host
computer
but
does
not
send
such
messages
via
the
circuit
21
to
the
office
39
so
there
is
no
switched
data
path
directly
between
a pair
of
sets.
The
only
data
path 22
interaction
between
sets
is
as
different
periph
eral
units
sharing
a
common
host
computer
that
can
act
as
a
message
relayer,
with
or
without
extra
processing.
Any
utilization
of
the
illustrated
general-purpose
telephone
set
is
initiated
by
turning
on
a
local
power
supply
(not
shown),
operating
the
reset
switch
45
in
FIG.
4.
and
typing
in
a
personal
identi?cation
number
to
unlock
set
operation.
This
causes
an
initializing
dis
play,
sometimes
called
a
“menu,”
to
be
presented
on
the
screen
13
for
providing
the
user
with
an
indication
of
the
initial
options
that
are
available
in
that
phase
of
operation.
FIG.
8
illustrates
in
the
upper
left
corner
thereof
one
form
of
that
initial
display.
Actuation
of
the
key
16
adjacent
to a
label
causes
the
host
computer
to
have
the
screen
erased
and
display
a
new
menu,
or
set
of
selectable
options,
corresponding
to
the
actuated
key
16.
Three
of
the
additional
displays
that
can
be
called,
by
actuating
the
one
of
the
screen
line
keys
16
adjacent
to
an
item
displayed,
are
also
shown
for
purposes
of
illustration.
The
keys
to
be
activated
are indicated
by
the
keys
marked
with
an
“X”
in
the
drawing
and
associ
ated
in
the
drawing
by
a
line
to
the
corresponding
addi
tional
display.
In
the
initial
display
140,
different
telephone
calling
operation
types
are
shown.
These
include
calling
by
number
(enables
dialing
by
typing
a
number
on
key
board
20),
by
menu
(calls
a
repertory-type
function
and
name
list
used
to
cause
the
set
to
dial
automatically
a
previously
stored
number
for
a
selected
name
or
func
tion),
or
by
typing
(allows
a
user
who
already
knows
the
key
label
for
a
desired
function
or
name
in
a
later
display
ofa
type-by-menu
sequence
to
type
in
that
label
and
cause
the
set
to
transmit
the
corresponding
number
or put
up
the
corresponding
display
as
may
be
appropri
ate).
The
user‘s
secretary
can
also
be
called
directly
by
selecting
the
corresponding
one
of
keys
16,
and
simi
larly
selection
of
"Top
10"
results
in
display
of
the
names
of
the
user’s
top
10
aides.
The
"Explain”
key
causes
a
text
display
to
be
presented
explaining
how
to
deal
with
the
options
of
the
display
that
included
“Ex
plain".
This
display
option
and
others
such
as
“back
up"
or
"restart"
in
FIG.
8
are,
of
course,
not
necessary
for
station
set
embodiments
having
the
keys
23
previ
ously
described.
“Answer/Hand-up”
causes
the
set
to
perform
whichever
of
the
two
functions
it
had
not
done
0
20
35
40
45
60
65
14
last.
“Switch-hook"
causes
a
switchhook
?ash
to
get
central
office
operator
attention.
“Personal
Asst“
calls
the
personal
assistance
display
143,
to
be
described.
“New
services"
calls
display
of
additional
services
not
already
on
the
initial
display
140;
and
in
particular,
it
makes
available
a
list
of
other
computer-based
services
to
which
the
user
may
have
access
by
connection
through
the
central
offices
39
and
interaction
using
the
various
keys
of
the
set
10.
"Call
Host"
enables
the
user
to
interact
with
the
particular
host
computer-based
service,
e.g.
41,
of
the
set
10
as
users
of
conventional
character
display
terminals
do
in
the present
state
of
the
art.
“Lock”
disables
the
entire
station
set
10
for
further
operation
by
way
of
transmission
or
access
to
processor
43
memories
until
the
user
types
in
his
or her
personal
identi?cation
number
(different
from
the
set
identi?ca
tion
number
in
the
switches
56).
The
“Call
by
Menu“
display
141
shows
callable
num
ber
group
types
that
the
user
has
previously
stored.
These
include
some
typical
categories
for
purposes
of
illustration.
One
of
these
is
"Co.
Admin."
and
its
selec
tion
causes
display
142
to
appear
showing
company
top
management
of?cials
(illustrated
by
organizational
functions
but
actual
names
can,
of
course,
be
used),
and
selection
of
any
of
these
items
of
display
142
causes
the
set
10
to
call
that
person’s
number
directly.
Alterna
tively,
activation
of
a
predetermined
one
of
keys
23
for
“traverse”
followed
by
actuation
of
a
key
with
display
142
causes
a
new
display
of
names
of
the
next
lower
level
of
administration
in
the
selected
organization.
The
“Restart"
item
allows
the
user
to
return
the
process
to
display
140.
Again
in
display
140,
selection
of
“Personal
Asst”
causes
display
143
to
appear
showing
various
types
of
services
available
in
this
category.
“Set
Reminder“
calls
a
further
display
(not
shown)
to
enable
the
user
to
pro
gram
the
set
10
to ring
at
a
preselected
time
and
display
then
the
reason
for
the
reminder.
“Read Appt”
calls
a
display
of
the next
twelve appointments
the
user
had
previously
stored
in
accordance
with
instructions
dis
played
by
selection
of
“Make
Appt”.
The
“Time
&
Date”
and
“Z-Month
Calendar"
items
display
current
time
and
date
or
the
calendars
for
the
current
month
and
the
next
month.
“Read
Mail”
displays
messages
that
may
have
been
recorded
in
the host
computer
memory
by
callers
while
the
user
was
away
from
the
set
10.
"Send
Mail"
calls
a
process
to
enable
the
user
to
enter
one
or
more
addresses
and
a
message
to
be
sent
out
by
the
set
10
when
it
can
gain
acces
to
each
addressee.
The
"Pink
Slip"
option
calls
a
subroutine
and
appropriate
corresponding
displays
to
enable
either
the
display
of
calling
data
for
previously received
calls
that
should
be
returned or
the
leaving
of
a
call-back
message
for
an
other
subscriber
having
similar
equipment.
“Back
up“
causes
the
program
to
retrace
the
menu
display
se
quence
one
display
at
a
time.
“Restaurant'”
displays
a
predetermined
list
of
restaurants
so
the
user
can
select
one
to
be
called
by
the
set
10
without
the
user
being
required
either to
recall
or
to
input
the
specific
number
each
time
that
it
is
to
be
called.
Instructions
to
processor
43
will
now
be
considered
for
carrying
out
elementary
operations
which
are
neces-
,
sary
for
putting
displays
on
the
screen
13,
user
interac
tion
with
a host
computer
using
the
station
set
keypad,
processing
call
connections
for
voice
communication
in
calls
initiated
by
user
dialing a
called
party
or
by
an
other
party
calling
the
set
user,
and
set
data
interaction
with
the
host.
Basic
commands
to
the
microprocessor