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When
you
are
on
a
phone
call
and
an
arriving
guest
initiates
a
door
call,
you
normally
get
a
call
waiting
tone
at
your
handset
to
announce
the
visitor.
But
if
you
do
not
intend
to
be
interrupted
in
any
ways
from
your
phone
call,
not
even
to
tell
somebody
to
get
the
door,
or
you
simply
can't,
that's
when
you
need
something
like
a
door
chime
announcer
in
addition
to
call
waiting!
At
the
chime
notes,
other
people
in
the
home
can
then
get
the
door.
But
if
you
have
several
doors,
they
will
need
to
know
which
door
to
go
to.
That's
when
distinctive
door
chime
can
help:
the
number
of
chime
notes
tells
them
which
door
your
guest
is
standing
at.
If
the
visitor
hits
the
call
button
again
out
of
impatience,
the
whole
system
repeats
all
announcements.
Yes,
it
does
not
get
any
better!
more...
>>
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Ultimatoll
Door
Entry
Functions
