AI IVR Vendor / Customer Onboarding Automation

I need an AI-driven IVR that takes new vendors from first phone touch to “ready to transact” without a human agent. The flow must guide callers through document submission, trigger automated account setup... (Budget: $250 - $750 USD, Jobs: AI Automation, AI Chatbot Development, AI Development, AI Voice Agents, Android, API Integration, Asterisk PBX, Automation, Mobile App Development, PHP)