Rahul Wadhwa argues flat tone on sales calls isn't a vocal technique problem but a sign you don't actually care. People hear the energy behind your words. Speak like the outcome matters, the way you would with a friend you want to help.
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So you keep thinking your voice is flat and cold because you do not know how to modulate it? That's not it. Your voice sounds flat because you're not feeling anything when you speak. 10 years in sales taught me this. People do not respond to tone, they respond to energy. And energy comes from intention. If you don't know why you're calling, if you don't care about the person you're calling, if you're scared of wasting their time, your voice will betray you. Voice modulation is not acting, it's alignment. Say the sentence like you actually mean it. Say it like the outcome matters to you. Say it like you'd say to your friend you genuinely want to help. Your voice does not need training, it needs purpose. Follow me for more clarity like this.