OK... I bought a Dell XPS12 and have just noticed something.

I usually keep my volume muted unless there is something I need to hear.... so a background game or something does not blast.

I have noticed this weekend.... that on an irregular basis, I am hearing one "ringing" like I am getting a call.

The only communication program I use is Skype and nothing is showing in the call register. I looked at Task Manager and did not see anything strange....

Any suggestion on what it might be and what I should look for?

Not annoying... but also do not want it to be something trying to gain access to my computer.

Thanks,

William