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In
that
event
locate
the
Controller
at
the
entry
spot
of
the
phone
line
in
the
home
(inside)
in
order
to
facilitate
connection
of
the
doorphone
station.
User
intervention
is
then
required
for
a
new
wirerun
or
for
using
existing
doorbell
wires
to
connect
the
exterior
speaker.
This
is
the
only
aspect
of
installation
that
requires
user
intervention.
Everything
else
in
terms
of
setting
the
system
up
are
plug-in
operations
with
these
telephone
intercom
systems.
These
intercom
systems
also
feature
a
built-in
auto-test
routine
upon
power
up
which
ensure
that
proper
conditions
are
met
on
the
phone
wirelines.
The
routine
also
casts
indications
of
possible
problem
for
eventual
correction
by
user.
As you know, if your home
wiring is run daisy-chain (point-to-point), you can't install a key system, PBX or any
star-wiring-based telephone system, unless you incur the high cost of rewiring all your
home.
These
plug&play
Premium
systems
install
on
both
daisy-chain
wiring
and
home-run
wiring.
Install
in
minutes!
more
>>
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Room
Phone
Intercom
Systems
