12. In Case of Problems / 13. Cleaning and Servicing
OPERATING
INSTRUCTIONS
19
Page
In Case of Problems
If you experience problems with the telephone, please refer to the
information below first. The housing may only be opened and repair work
completed by trained personnel. Failure to observe this annuls all rights to
claims under the terms of guarantee.
Problem
Measures
The caller hears you poorly or
not at all
S
Check the receiver and helix cable
S
Place the telephone on a stable,
clean surface for the handsfree
function
Display appears weak or not
at all
S
Check the charge status of the
batteries and their position in the
battery compartment
S
Increase the contrast setting of the
display
S
Avoid reflective light falling on the
display
No call indication in the
display
S
Check the charge status of the
batteries and their position in the
battery compartment
S
Has the CLIP service been enabled
by your telephone provider?
Problem
Measures
No function
S
Unplug the telephone line plug,
remove the batteries, disconnect all
lines and install the telephone again
as described
No ringing or dialling tones
S
Check the telephone connection
line
S
Check the helix cable from the
receiver
S
Check the telephone or PABX
system switch line
S
Switch the filter off
Only one ring and the line is
interrupted
S
Check the plug connections
S
Check whether other equipment is
connected parallel in the same line
and disconnect them, if necessary
Cleaning and Servicing
S
Clean the housing surfaces with a soft, lint
−
free cloth.
S
Do not use cleaning agents or solvents to clean the equipment.