Uniden DECT3181 - Manual (Page 35)

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Noise or static on the line
Interference is the most common cause of noise or static on a cordless
phone. Here are some common sources of interference:
electrical appliances, especially microwave ovens
computer equipment, especially wireless LAN equipment and DSL
modems
radio-based wireless devices, such as room monitors, wireless
controllers, or wireless headphones or speakers
fluorescent light fixtures (especially if they give off a buzzing noise)
other services that use your phone line, like alarm systems, intercom
systems, or broadband Internet service
If static is on 1 handset or in 1
location: If static is on all handsets or in
all locations:
Check nearby for one of the
common interference sources.
Try moving the handset away
from a suspected source, or try
moving the suspected source
so it’s not between the handset
and the base.
There is always more noise at
the edges of the base’s range.
If an
Out of Range
message
displays, try moving closer to
the base.
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Check near the base for the
source of interference.
Try moving the base away from
a suspected source, or turn off
the source if possible.
If the base has an adjustable
antenna, try raising the antenna
so it stands straight up.
If you have any service that uses
the phone line, you might need
a filter (see below).
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Installing a line filter or DSL filter
Sometimes, broadband Internet services that use the telephone line
can interfere with phones. One of these services−DSL−often causes
static on telephones. A DSL filter or telephone line filter usually solves
this problem. The technician who installed your DSL service might have
left some filters for you; if not, call your DSL provider or look in any
electronics store.
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