WhatsApp Sales Call Center Setup

I need my existing WhatsApp number turned into a mini-call center dedicated to handling sales inquiries. Agents must be able to switch seamlessly between text chats and voice calls inside WhatsApp, so the chosen solution should support both modalities without forcing customers to change apps. • Core requirements A multi-agent system that intelligently routes incoming sales inquiries—whether messages or calls—to the next available representative. Once a customer is initially handled by a specific representative, all subsequent interactions are automatically assigned to the same representative to ensure continuity and a personalized customer experience • Smart automated responses that greet prospects instantly, capture basic information, and keep them engaged until a human joins. • Customer segmentation tools so I can tag and filter conversations (e.g., hot leads, follow-ups, repeat buyers) and export that data to my CRM. Please include in your proposal the platform or stack you plan to use (WhatsApp Business API, Twilio, 360dialog, Wati, or any alternative), how you will configure agent dashboards, and what reporting/analytics will be available out of the box. I will supply the verified WhatsApp Business number; you deliver the full setup, brief my team on usage, and remain available for post-launch tweaks during the first week.