AI Voice Agent + WhatsApp Order Automation (MVP) — Integrate Existing Platforms

This is for small wholesale company. that receive a high volume of phone orders every day, and many calls get missed during busy periods — which means lost orders. We want to build an MVP / pilot of a system that: Uses an AI voice agent to answer incoming calls and take orders in [language(s) — e.g. English / local language]. Sends an automated WhatsApp message to the customer when a call is missed (inviting them to place the order or request a callback). Provides a simple dashboard to view and manage incoming orders. Important: We do NOT want a voice model built from scratch. We want you to integrate existing voice AI platforms (e.g. Vapi, Retell, OpenMic, or similar) with the WhatsApp Business API and a lightweight order dashboard. Please factor this into your approach and quote. Scope of work (MVP) Inbound AI voice agent — answers calls, understands [language(s)], captures a structured order (product + quantity), reads it back, and confirms. Missed-call detection → WhatsApp follow-up — when a call is missed, automatically send the customer a WhatsApp template message. Order management dashboard — view incoming orders, products, and customers; update order status; export order list. Telephony setup — connect a phone number (Twilio or similar) for inbound calls and missed-call handling. WhatsApp ordering flow (nice-to-have) — let the customer confirm/place a simple order via WhatsApp reply. Documentation + clean handover — we must own all code and all platform accounts, and be able to run and maintain it. Required skills Conversational / voice AI integration (Vapi, Retell, OpenMic, or equivalent) WhatsApp Business API / BSP experience (Twilio, 360dialog, Gupshup, etc.) Telephony (Twilio / SIP) Backend + a simple frontend dashboard API integrations and clean, maintainable, well-documented code Fixed-price MVP / pilot. We are looking for a paid contract only If the pilot is successful, there is potential for ongoing work (new features, more locations/clients, maintenance retainer). Please include in your proposal Links/demos of similar voice AI and/or WhatsApp projects you've built. Which voice AI platform you'd recommend for our use case, and why. Your proposed approach and rough architecture (which platforms you'd integrate). A fixed-price estimate and timeline for the MVP. Any questions you have about the scope.