90 Fixing problems
Troubleshooting
Pressed key does not respond:
Check if the key is stuck.
Telephone does not ring:
Check whether the "Do not disturb" function is activated on your telephone
(
Page 59). If so, deactivate it.
You cannot dial an external number:
Check whether your telephone is locked.
If the phone is locked, enter your PIN to unlock it Page 62.
To correct any other problems:
First contact the relevant service personnel. If the service personnel are unable
to correct the problem, they must contact Customer Service.
Caring for your telephone
• Never allow the telephone to come into contact with coloring, oily or aggres-
sive agents.
• Always use a damp or antistatic cloth to clean the telephone. Never use a dry
cloth.
• If the telephone is very dirty, clean it with a diluted neutral cleaner containing
surfactants, such as a dish detergent. Afterwards remove all traces of the
cleaner with a damp cloth (using water only).
• Never use aggressive or alcohol-based cleansers on plastic parts. The use of
scouring agents is also forbidden.