Ericsson DIALOG 4220 - Manual (Page 54)

Messages
Dialog 4220 Lite/Dialog 4222 Office 54
Cancel MMW at your own extension #31#
Dial.
í
Press.
Order MMW to another extension *31*
Dial.
z
Dial the extension number.
# í
Press.
The Message Waiting key lights up on the called extension.
Cancel MMW to another extension #31*
Dial.
z
Dial the extension number.
# í
Press.