You're that guy. The lottery is a numbers game. Calling for appointments is a quality game. Approach each call with an attitude of accomplishment and desire, not one of burning through names as fast as you can, hoping it's time for your number to be drawn. Don't Ask for a Decision in the Opening.
People are resistant when faced with decisions before they see any value.
The only way they'll consider investing time with you is if they see some value in doing so. Do Have an Interest-Creating Opening. Depending on what you're doing now, and your objectives, this might be something worth taking a look at. I'd like to ask a few questions to see if you'd like more information. Do Ask Questions.