A phone /Skype call interview.
We would like to set up a quick 15 min pre-screening skype call?
Refers to the act of glancing at the netting over your window/door to see how many flying bloodsuckers are landed on it before deciding whether or not to venture outside.
You'll want to always give "the great outdoors" a pre-screening before just mindlessly heading out the door, so that you don't get eaten alive once you're out there.