User's Manual

24
should first check that:
• The base unit is connected to the power supply and phone line.
• The main power is switched on at the electrical outlet.
• The handset battery is installed and has not run out of power.
DO NOT attempt to make repairs yourself. This will void your warranty.
PROBLEM POSSIBLE CAUSES / REMEDIES
Unable to make a call -
“NOT REGISTERED”
appears on the handset
• The handset is out of range of base unit - move to closer to
the base
• Interference due to environment - position base unit to reduce
interference (move higher)
•
De-synchronization has occurred. The base unit will
reset synchronization automatically. Occasional loss of
synchronization between the handset and base unit is
normal if there is significant interference from the
surrounding environment.
• Handset may not be registered to base unit (see the section
in this manual titled BASE UNIT – REGISTRATION Page XX)
Unable to enter the
submenus
• Ensure unit is not in the base cradle
• Return to standby mode by pressing
Caller ID is not
displayed
• Check your network subscription to Caller ID
• Wait until the phone rings twice before answering
• Full name and number (including area code) need to be
stored in Phonebook for name display if the name is
unavailable through Caller ID
Caller ID is not
displayed during a Call
Waiting call
• You must subscribe to the Call Waiting Caller ID service for
this feature to work. Contact your local phone company
confirm you have signed up for Call Waiting Caller ID service.
• While receiving the Call Waiting call, a second line was also
off hook. The ID-2820 cannot receive Call Waiting ID data
when a second line is also off hook.
Handset does not ring
• Ring Volume is set to ‘OFF’ (see the section in this manual
titled HANDSET SETTINGS - CHANGE RING AND KEY
TONES Page XX)
Keys activated while
talking
• Activate the Smart Key Lock feature (see the section in this
manual titled HANDSET SPECIAL FEATURES Page XX)
• Make sure that your ear is touching the top section of the
handset (receiver) while you are talking
Mute, intercom and
speakerphone features
do not work during a call
• Check if manual Key Lock or Smart Key Lock is engaged (see
the section in this manual titled HANDSET SPECIAL
FEATURES Page XX)
Battery indicator
displays low, even if
recharged
• Battery pack may need to be replaced. Do not mix new and
old battery packs or battery packs of different types. Replace
battery pack with the same or equivalent type recommended
by the manufacturer: NiMH 650mAh 3.6V (AAA) battery pack.
Unable to register new
handset
• A maximum of 4 units can be registered at one time. De-
register a handset and try again
• Make sure you select a base number that has not been
assigned
• Make sure that you are attempting to register only an AT&T
ID-282H handset.
Unable to make an
intercom call
• Only one external call and one internal intercom call can take
place at once. Make sure no other handset is making a call.