Siemens optiPoint 410 User Manual page 172

Operating the Telephone with the optiPoint display module
Step by Step
172
Switching to overwrite mode
If the icon appears in the bottom system display
row, you are currently in insert mode, i.e. input charac-
ters are inserted in between existing characters.
Press this button to switch to overwrite mode.
Call Control
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Additional Keys
<
Clears individual characters from right to left.
:
Confirms input (e.g. for dialing).
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