Problem
Possible Cause
Solution
You cannot use the
handset during a
power failure.
The handset will not function
during a power failure because the
CS stops emitting radio waves.
—
The tone from the
Bluetooth headset
cannot be changed.
The Bluetooth headset tone is a
specific tone and is not related to
the Incoming Option settings
(Ringer Type).
—
Noise is frequently
heard.
Nearby electrical appliances are
causing interference, or you are
too far from the CS.
•
Place the handset and CS away
from other electrical appliances.
•
Move closer to the CS.
Two short beeps are
heard during a
conversation.
The radio signal is weak.
Move closer to the CS.
You charged the
battery for 3 hours, but
the beep tones sound,
and " " flashes
(needs to be charged)
after a few telephone
calls.
The battery charge contacts may
be dirty.
Clean the battery charge contacts
without damaging them and charge
once more.
It is time to change the battery.
Replace with a new battery.
While charging the
battery, the handset
and the AC adaptor
feel warm.
These are normal conditions.
—
"
No Service
" is
displayed, and beep
tones are heard.
The handset is out of range.
Move closer to the CS or try again
later.
The CS or phone service is out of
service.
Consult your administrator or dealer.
While charging the
battery, the LED
indicator blinks
rapidly, but the
handset does not
beep.
The temperature of the battery
being charged is outside of normal
limits.
Confirm that the area where the
handset is being charged is between
5 °C and 40 °C, and wait for the
battery’s temperature to drop.
While charging the
battery, the LED
indicator blinks
rapidly and the
handset beeps rapidly.
The battery is not charging
correctly due to an electrical
failure.
Unplug the AC adaptor from the AC
outlet, remove the battery from the
handset, and consult your dealer.
Document Version 2012-11
Operating Instructions
59
Appendix