Incidentally, whilst researching this, I also found a useful FAQ about presence and pictures in Lync (Skype for Business) that may be worth a read. The article also describes some other changes in behaviour that might lead to a purple arrow being shown where the presence indicator normally is. Open a browser window and enter the Admin URL to open the Skype for Business Server.
I regularly add time into my Calendar for when I’m travelling (and mark it as Out of Office) but if my travel plans change (or I’m running late) I might still be online in Skype for Business and that’s what causes the purple spot to be displayed. Select your profile picture, or select Edit Profile in the Account. the appointment status, not to be confused with an Automatic reply message from Exchange), the purple spot appears next to the Skype for Business presence information when they are online anyway... You can also select an existing custom background you’ve. The Poly Community is not a replacement for Poly Global Services Support and you may be as. From this menu, you can select Blur to blur all calls or click Add Image to create a custom background from a picture file on your local hard drive. This is a quick overview of the most common asked questions in regards to Microsoft Teams or Skype for Business and the full VoIP FAQ can be found > here < This Section will be updated from time to time.
It seems that, since the 14 July 2015 update for the Microsoft (Lync 2013) Skype for Business client, when a calendar shows a user as Out of Office (i.e. Start by clicking on your profile picture in Skype window and selecting Settings. My colleague Brian Cain ( clearly has better googling (ahem, Binging) skills than I, because he found Microsoft knowledge base article 3072756, describing a change that explains the phenomenon. Unfortunately, I couldn’t find anything on the ‘net.
I hadn’t seen this before and I wondered what it meant. I noticed a couple of days ago that my Skype for Business presence information was accompanied by a purple dot/spot. Please be warned that the information here may be out of date. I don't routinely update old blog posts as they are only intended to represent a view at a particular point in time.