Snom 100 v1.5 User Manual page 9

corner with a symbol. A "123" indicates the numeric,
"abc" the lower case and "ABC" the upper case mode.
The function keys F1 to F4 are context sensitive, i.e.
they change their behavior according to the mode of
the phone.
The menu key is used to call up the main menu.
Context help texts can be activated with the help key
. The Cancel is used to abort actions or cancel
inputs. The Enter/Ok key confirms actions,
selections and inputs.
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