Making/answering calls, intercom
Problem Cause/solution
is displayed. RThe handset is too far from the base unit. Move closer.
RThe base unit’s AC adaptor is not properly connected.
Reconnect AC adaptor to the base unit.
RThe handset is not registered to the base unit. Register it
(page 47).
Noise is heard, sound cuts in
and out.
RYou are using the handset or base unit in an area with
high electrical interference. Re-position the base unit and
use the handset away from sources of interference.
RMove closer to the base unit.
RIf you use a DSL/ADSL service, we recommend
connecting a DSL/ADSL filter between the base unit and
the telephone line jack. Contact your DSL/ADSL provider
for details.
The handset or base unit does
not ring.
RThe ringer volume for landline is turned off. Adjust the
ringer volume (page 39, 42).
RThe ringer volume for cellular line is turned off. Adjust the
ringer volume (page 38, 42).
RWhen one handset is selected to ring for cellular calls,
other units do not ring. To change the selection, see
page 20.
RSilent mode is turned on. Turn it off (page 44).
I cannot make local calls with
the handset or base unit using
a cellular line.
RYou 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 20).
I cannot make or answer
cellular calls with the handset
or base unit.
RDepending on the cellular phone’s compatibility, you may
not be able to make or answer cellular calls even if the
cellular phone is connected to the base unit.
RMake sure that the CELL 1 or CELL 2 indicator lights up
and the cellular phone is connected to the base unit
(page 19).
RIf someone is talking on a cellular call or using the
headset, you cannot use the cellular feature. There can
be only one active Bluetooth connection at a time.
RThe cellular phone is being used separately from your
system.
I can make and answer cellular
calls but cannot hear a sound.
RThe Bluetooth technology on your cellular phone may not
be functioning normally. Turn off and on your cellular
phone.
RDisconnect and reconnect the base unit AC adaptor and
try again.
I cannot switch cellular calls
from the unit to the cellular
phone.
RYour cellular phone may not support this feature. Refer to
the operating instructions of your cellular phone.
For assistance, please visit http://www.panasonic.com/help 71
Useful Information
TG78xx(en)_1210_ver101.pdf 71 2012/12/10 21:19:31