Problem Cause/solution
The handset or base unit does
not
ring.
R The ringer volume for landline is turned off. Adjust the
ringer volume (page 26, 32, 53, 57).
R The ringer volume for cellular line is turned off. Adjust the
ringer volume (page 26, 32, 51, 57).
R The unit which is not selected to ring for cellular calls
does not ring. To change the selection, see page 21.
R Silent mode is turned on. Turn it off (page 60).
R The ringer volume is turned off by pressing and holding
0 (
). Press and hold 0 ( ) again to turn it on
(page 26).
I cannot make local calls with
the handset or base unit using
a cellular line.
R You need to add your area code when making cellular
calls. Store your area code in order to automatically add it
to the beginning of the 7-digit phone number when
making cellular calls (page 23).
I cannot make or answer
cellular calls with the handset
or base unit.
R Depending on the cellular phone’s compatibility (page 6),
you may not be able to make or answer cellular calls even
if the cellular phone is connected to the base unit.
R Make sure that the CELL indicator lights up and the
cellular phone is connected to the base unit (page 22).
R Only 1 Bluetooth device can be used with the unit at a
time.
R The cellular phone is being used separately from your
system.
I can make and answer cellular
calls but cannot hear a sound.
R The Bluetooth technology on your cellular phone may not
be functioning normally. Turn off and on your cellular
phone.
R Disconnect and reconnect the base unit AC adaptor and
try again.
I cannot switch cellular calls
from the unit to the cellular
phone.
R Your cellular phone may not support this feature. Refer to
the operating instructions of your cellular phone.
I cannot make a call using a
landline.
R The dialing mode may be set incorrectly. Change the
setting (page 18).
I cannot use a cellular line. R The unit cannot be used to talk on 2 cellular lines at the
same time. Try again later.
The handset or base unit does
not ring the cellular phone's
ringer tone even the ring as cell
mode is turned on.
R The units use the preset ringer tones (CELL 1: Tone 2,
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