Project Description: I am looking for an experienced developer to build an AI-powered calling system specifically designed for real estate lead follow-up qualification and appointment booking. The system should automate outbound calls, handle inbound queries and engage prospects using a natural human-like English voice. Key Objectives: Automate lead follow-up calls Qualify leads using predefined real estate scripts Reduce manual calling workload Increase appointment bookings and response rate Core Requirements: 1. AI Voice Calling Natural human-like English voice Real-time call conversation (STT + TTS) Ability to follow real estate scripts with basic dynamic replies 2. Outbound & Inbound Calls Automated outbound calls to uploaded contact list Virtual number for inbound calls Option to transfer call to human agent 3. Features Needed Real estate call scripts (property inquiry, follow-up, appointment scheduling) Call recording + call logs + conversation transcript Appointment booking workflow Dashboard with call analytics Multi-agent management (optional) 4. Integrations Google Sheets / CRM (to sync leads & store call outcomes) API support for lead submission from website 5. Admin Dashboard Upload CSV/Excel contact list Manage scripts Schedule outbound campaigns Track call status & performance