Siemens OpenStage 60 SIP Operating Manual page 28

Getting to know your OpenStage phone
Multi-function keys
Key
*
#
28
Function during text input
Write special characters
Switch between upper and low-
er case
You can also input text using the display keypad
Function when held down
Deactivate the ring tone
page 152
Activate the telephone lock
page 157
page 30.