by Tristen Taylor for HubSpot When I think about different types of sales calls, some of the first terms that come to mind are terms like warm calling or cold calling. These are important to understand of course, but salespeople aren't always going to call just to pitch to a potential customer — the job encompasses so much more. Sales professionals not only convert prospects into buyers, they hold the power to negotiate, upsell, and even problem-solve after the initial purchase is made. In this post, I‘ll guide you through the different types of sales calls and the purpose they serve to meet…