I've been working on my robot, which requires ordering some parts from a reseller that usually does business with real companies. When you call to talk to their sales folks they toss around the terms inside or outside sales. Curious what that meant I went looking for a definition on the web, and had a very hard time finding one. The best I was able to come up with is this page from the US Department of Labor. Apparently outside sales folks are ones who primarily make sales by visiting customers at their place of business, and therefore presumably inside sales folks primarily make sales via the phone or Internet.