I built an AI that answers calls and WhatsApp messages for your business

Hey everyone, I've spent the last few months building something I personally felt the need for as an entrepreneur: an AI agent that makes sure no customer ever goes unanswered. It's called Estera (tryestera.com), and I built it for restaurants, real estate agencies, medical, law firms and hotels. Basically, businesses where every missed call means lost revenue. What it actually does: Answers calls automatically when your team can't: nights, weekends, peak hours, after hours Replies on WhatsApp in under 5 seconds, 24/7 Books appointments directly into your calendar, no back-and-forth needed Speaks naturally, with a human-sounding voice, adapted to your brand We launched recently and already have case studies with medical clinics, real estate agencies and restaurants from all over Europe and US where they find appointments already booked in their calendar. If you run a business in any of these industries and want to try it out, I'm happy to answer questions. Any feedback is welcome, we're early stage and building based on real needs. Thanks!