A cold call is any call you make to a prospective client who isn’t expecting to hear from you. Some percentage of salespeople are uncomfortable calling strangers, even though every good thing that happens in sales starts with meeting a stranger. Those conflict-averse salespeople believe they can turn a cold call into a warm call. To do this, they send their prospective client an email first, believing this will make the client feel differently when the salesperson finally works up the courage to call them.