Why does my laptop make sound when one gets a call in the mobile or landline phone?

Why does my laptop make sound when one gets a call in the mobile or landline phone? This happens only when the laptop is near my mobile phone or landline. I dont see any wireless transmission interference happening because this also happens when I get a call on landline.|||your laptop may be picking up em from those devices. Try getting your laptop near the TV and a few other devices and see if the same thing happens... your laptop might not be protected very well from outside em... no worries