Ask HN: Which founders tried called calling to sell to their target customers?

Hey folks,

I’m Sascha, Founder of Questmate (https://www.questmate.com) & Scriptable.run (https://www.scriptable.run).

I’d be keen who else here is doing called calls as part of their initial sales efforts. It still seems to work quite well, yet it seems not many are doing it. And if you do it, what kind of strategy / script do you see being most effective?