Looking for suggestions on unknown ringing sound playing in speakers.

[Ryan_PHX]

I'm at a loss. I'm no novice when it comes to computers and technology (I'm typically the go-to whenever anyone at work (a call center for a large bank) has any computer issues), but I'm having an issue I can't seem to find the answer to...

There has been a sound which, seemingly at random, will play through my bluetooth speaker that sounds like an incoming Skype call or something. However...

• Skype is not running on my computer (it's not active on my task bar, not in the system icons, not even in the task manager)
• the sound takes over my audio regardless of whatever may already be playing, yet the volume mixer doesn't reflect anything playing through the audio on any devices
• I show no notifications at the time of the sound
• even when I do start up Skype and check, the last activity that I received was over half an hour ago (and it wasn't even a call, just a message).

I'm not even sure where else to look for the source of the audio or what possible logs i might be able check. Any suggestions?...

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