Siemens OpenStage 30T User Manual page 41

Either:
Program another key - press OK
and repeat from step 3,
or
Exit - press ▲ or ▼ until the display
shows Exit? then press OK
To dial the programmed number, see page 12.
PRESS A PROGRAMMABLE KEY
Exit?
<date>
<own number>
Menu Features
<time>
39