Uniden DS72 - Manual (Page 7)

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factors limit range, and it would be impossible to include all the variables in our
rating. The Maximum Range rating of this phone is meant to be used as a
means of comparison against other range claims.
Telephone Line Problems
If you are having trouble with your telephone service, you must first disconnect
your phone to determine if it is the cause of your problem. If you determine that it
is the cause, you must leave it disconnected until the trouble has been corrected.
Radio Interference
Radio interference may occasionally cause buzzing and humming in your
cordless handset, or clicking noises in the base. This interference is caused by
external sources such as TV, refrigerator, vacuum cleaner, fluorescent lighting or
electrical storm. Your unit is NOT DEFECTIVE. If these noises continue and are
too distracting, please check around your home to see what appliances may be
causing the problem. In addition, we recommend that the base not be plugged
into a circuit that also powers a major appliance because of the potential for
interference. Be certain that the antenna on the unit is raised vertically.
Finally, it should be noted that some cordless telephones operate at frequencies
that may cause interference to nearby TV’s or VCR’s. To minimise or prevent
such interference, the base of the cordless telephone should not be placed near
or on top of a TV or VCR. If interference is experienced, moving the cordless
telephone farther away from the TV or VCR will often reduce or eliminate the
interference.
More Than One Phone
Each telephone device that you connect draws power from the phone line. We refer
to the power drawn as the device’s Ringer Equivalence Number (REN). The REN is
shown at the bottom part of your telephone. If you are using more than one
phone or other device on the line, add up all the RENs. If the total is more than 3,
your phones might not ring.
Under power failure, this telephone may not operate. Please
ensure that a separate phone, not dependent on local power
is available during emergencies.
PRECAUTIONS