Uniden DS72 Owner's Manual page 29

PROBLEM
No dial tone.
Does not ring.
No power on
handset unit
Does not charge
Range is limited
Calls received
flutters or fades
Cannot store or
recall phone
numbers from
memory
SUGGESTION
Check the telephone line cord connectors at both ends
that they are pushed in firmly until they click.
If you had a power failure or had unplugged the base
unit, replace the handset on the base unit for two to five
second to reset the system.
You may have exceeded the Ringer Equivalence Number
(REN) limit of how many phones can be connected to the
same line. The REN total of all devices (printed on the
label on the bottom of each unit) should not exceed three
(3). Disconnect the appropriate units to lower the REN
total.
Check the Ni-MH battery pack connection inside the main
battery compartment on the handset.
The handset rechargeable Ni-MH battery pack may need
to be charged.
Make sure the charging contacts on both the base unit
and the handset are in contact during charging.
The charging contacts may need to be cleaned. Refer to
page 4 or page 15.
The Ni-MH battery pack may need to be discharged first
before a full charge.
Raise or reposition the antenna on the base or handset.
Move the base unit so that it is centrally located in your
residence or office and make sure that the base unit is not
located near appliances.
The handset rechargeable Ni-MH battery pack may need
charging.
You may be out of normal operating range. Move closer to
the base unit.
When storing phone numbers, make sure that the handset
is in the standby position.
When recalling stored phone numbers, check first for a
dial tone.
Always use two digits when entering/recalling memory
index numbers.
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