Well, I got to this thread too late, sorry! The Contact DK is an older Teleco voice mail system. If it has a white background and blue lettering on the faceplate it is most likely one with a physical HDD on it.

You are correct however :
#656# , EXT , Redial
#657*, EXT , Redial

Tony

- Tony
Ohio Data LLC
Phone systems, data networks, firewalls and servers in Central Ohio.
Some people aren't used to an environment where excellence is expected.