AASTRA phone 312 用户手册

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页码 82
63
Reset
Deleting the MEM card    
You may delete any data on the MEM card and restore the default settings. When doing so, you also
delete the profiles and the access data. The local telephone book can be deleted separately.
• Switch off the handset (keep the C key pressed).
• Simultaneously press the C key and number 5 and keep them pressed.
• Only release the keys if you see a confirmation in the display.
Note
After the deletion, “English” is switched on as display language.
Deleting the local telephone book    
• Switch off the handset (keep the C key pressed).
• Simultaneously press the C key and number 8 and keep them pressed.
• Only release the keys if you see a confirmation in the display.