T46s Not showing DND status to other users

[vgraham]

Problem – when selecting "Do Not Disturb" on the physical phone, the calls will go to voicemail when that phone number is dialed directly or by extension, however the line still shows "available" or green to the rest of the team members. We would like to have DND show to the rest of the phones that the user is NOT available for calls the same as if the line was busy.
Is there a way to make this happen?