Laptop making dial up sound/blip?


Jun 10, 2015
My laptop randomly makes a rapid blip sound that is very similar to what a dial up modem sounds like, but without the static. When I hear it, the sound is coming from the speakers, not the laptop itself - as in, not a mechanical sound from the hardware and nothing close to resembling a software/booting beep. Very difficult to describe the sound in words, but here goes: Doot doota doot doota doot; generally in a succession of about 8-10 blips, then it stops as abruptly as it starts. The laptop is currently on a wireless connection so I've wondered if it is signal interference, but aside from that, I've no other ideas about what it could be.