Operation Manual

270 Fixing problems
Fixing problems
Caring for your telephone
• Never allow the telephone to come into contact with colouring, oily or aggressive 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 cleaning fluids containing alcohol or plastic-damaging detergents to clean the tele-
phone. The use of scouring agents is also forbidden.
Troubleshooting
Pressed key does not respond:
If the telephone is locked repdial keys cannot be used. This also applies when emergency num-
bers or predefined numbers from the dial planed are stored on them.
Check whether your telephone is locked ("Phone locked: Enter Password" appears on the screen).
If the phone is locked, unlock it.
The phone does not ring on call:
Check whether the ringtone is deactivated (see icon in the status bar on the display  Page 27).
If it is deactivated, activate the ringtone
You cannot dial a number:
Check whether your telephone is locked ("Phone locked: Enter Password" appears on the screen).
If the phone is locked, unlock it.
To correct any other problems:
First contact the relevant administrator. Problems that cannot be corrected should be referred to
Customer Service.
Contact partner in the case of problems
Contact your administrator if a fault persists for more than five minutes, for example.