Ask HN: Any Open Source Cold Call Assistants

Hey HN, do you know of any open source cold call assistants or repos to practice cold calling?

I have my product and target list, but I just suck at cold calling and want to get better, but don't want to practice on prospective clients.

I know there's already repos which utilize LLMs and tts / sst to help people with their interviews, but wondering if there's anything out there yet to help with cold calling / practicing cold calling?