AI voice bot for collecting payment

Hiring For AI Voice Agent bot expert which makes a calls, and close a deal .. Have you ALREADY built an ai voice agent bot that can CLOSE people over the phone and collect payments in one call? 1️⃣ If YES — send me call recordings with real prospecfs I can see please!! Looking to hire asap 2️⃣ if you have NOT built & tested the specific use case I mentioned what would be your proposed structure to go ahead and develop this into a platform? (Describe this as extensively and technically as possible) Example describe exact: TTS -STT - LLM - DB -Telephony etc