Do Not Disturb; Accessing Voice Mail; Recording Unavailable Voice Message - Cisco SPA504G Setup & User Manual

And then enter the number you would like to forward to and then hit the
dial button to confirm. If successful it will display as Calls Forwarded on
your screen.
And call *73 to disable call forwarding

Do Not Disturb

To enable Do Not Disturb hit the ―dnd soft key
To disable Do Not Disturb hit the ―-dnd soft key

Accessing Voice Mail

Press
You will then need to enter your password.
Or
Simply call *97 from your VoIP Phone and then enter your password.

Recording Unavailable Voice Message

Press
You will then need to enter your password.
Or