Siemens optiset E standard Operating Instructions Manual page 58

Saving Station Numbers, Functions, Procedures and Appointments
Step by Step
US: E nd?
UK: E xit?
US: Program ano th er key?
UK: An other key?
58
Confirm.
or
Select and confirm.
Select the stored procedure by pressing a key.
Proced ures containing functions which can be
switched on/off can be activated by pressing the
key, and deactivated by pressing the same key
again.
You can also press a procedure key during a call.
The stored digits are automatically sent as DTMF
signals Æ page 27.