Recently, while checking my voicemail in Cloud PBX, I noticed that I now have the Play button in Outlook

Now instead of opening up the .MP3 attachment to listen to voicemails, I can simply click the play button.

The ‘play on phone’ button errors out, but the Edit Notes button works.

This feature became enabled when the “Microsoft Exchange Add-in” was added as a COM Add-in inside Outlook

The timestamp on UmOutlookAddin.dll is July 31, 2016

I have not been able to find any announcement about this new capability.