Operation Manual

251 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 cleaners containing alcohol, cleaners that corrode plastic or abrasive powders!
Troubleshooting
Pressed key does not respond
If the phone is locked, repdial keys cannot be used. This also applies even if an emergency num-
ber is saved on this key.
Check whether your telephone is locked (The following message appears on the screen: "Phone
locked. To unlock enter the PIN."). If the phone is locked, enter your PIN to unlock it.
Keys with modified functions
The administrator may have reprogrammed the following keys:
• Conference: Initiate conference  Page 120
• Transfer: Transfer a call
 Page 111
• Hold: Hold active call
 Page 101
Ask your administrator about the modified functions.
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 (The following message appears on the screen: "Phone
locked. To unlock enter the PIN."). If the phone is locked, enter your PIN to unlock it.
To correct any other problems
First contact the 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.