Building the system

From zero to first test lead — the exact implementation steps, code snippets, and gotchas.

In this module

Step 1 — Email parserResend inbound webhook that parses Bayut/PF emails into structured lead data.Step 2 — WhatsApp integrationTwilio WhatsApp Business API for instant first-touch messages with read receipts.Step 3 — Voice agent with Retell AIRetell AI voice agent that calls leads, qualifies them, and handles Arabic/English switching.Step 4 — Calendar bookingGoogle Calendar API integration for automated viewing scheduling.