This addition would improve the presence indicators as sometimes people just put reminders or other appointments on their calendars to indicate things that they are working on but they are still reachable for an instant message or call. However if they are in a meeting with multiple people most likely. My company recently migrated from Skype for Business to Jabber. In Skype for Business, your status would say "Busy" if you had an appointment on your calendar, but the appointment had no other attendees. If the appointment on your calendar was a meeting that had other attendees, it would say "In a Meeting." Jabber just shows "In a Meeting" in both cases.I find myself looking at others calendars in Outlook more since we've migrated to Jabber for this reason.Thanks for the consideration!