Aastra Dialog 4220 Lite User Manual page 55

Messages
Voice Mail (optional)
You may be connected to a Voice Mail application, contact your
system administrator for more information and see separate
instructions for the application.
The Voice Mail application allows you to leave a voice message to
the caller when you are unable to answer calls, e.g. when out of
office, in a meeting, etc. The caller can then leave a message in
your mailbox. When back in your office you can enter your mailbox
and listen to the received messages.
If you use the Personal Number feature, it is recommended to
program Voice Mail as the last answering position for all search
profiles.
Dialog 4220 Lite/Dialog 4222 Office 55