262 disable dnd key new
Tested only on:
Snom 710
Snom 720
Yealink T40P
Polycom VVX 500
Closes #262
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Tested only on:
Snom 710
Snom 720
Yealink T40P
Polycom VVX 500
Closes #262