Call Register
Key mapping:
Scrolls to the next call.
Scrolls to the previous call.
Shows details of this call.
Deletes the current entry.
ENTER / Dials the number of the current entry.
Off Hook
Returns to the idle state.
CANCEL
By pressing the 
key you can get details about this missed call. Information regarding “To”, “From”, “Time”, and “Missed” (i.e., number of missed calls) is provided.
Key mapping:
You can use the current entry for your next call and possibly edit the number before calling it.
Saves the current calling party to the phone book.
Step to the next kind of information: To, From, Time and Number of calls
Deletes the current entry.
ENTER / Dials the number of the current entry.
Off Hook
Returns to the idle state.
CANCEL
Speed Dial
The snom 220 supports speed dial of up to 33 numbers. These are mapped onto the numbers
42