To open the menu control
To confirm your settings (OK button)
To turn off the microphone during a conversation (MUTE)
Intercom button, to make internal calls and to forward calls
Return button (correction) during setup and programming
To open the phonebook memory
Call button:
To start or answer calls
Press to switch the speaker function on/off
End button:
To disconnect a call
In standby: press and hold to switch off the handset
R button (flash), to activate telecom services
Also used as a delete button, to delete phonebook memories and
messages from the answering machine
Redial button for last dialled number(s)
In standby: to scroll the Caller-ID memory
During a call: to set the reception volume
During setup: to scroll the setup optionsR
Keypad, for dialling phone numbers
Also used for operating the answering machine
While programming: to enter names and numbers
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