Integrate Voice AI with Salesforce for CRM Sync: My Implementation Journey

Integrate Voice AI with Salesforce for CRM Sync: My Implementation Journey TL;DR Most voice AI integrations fail when CRM data isn't synced in real-time. Here's what breaks: webhook timeouts, race conditions between transcription and database writes, and missing call context during handoffs. This implementation uses VAPI for conversational AI agents, Twilio for carrier integration, and OAuth 2.0 to authenticate Salesforce writes. Result: live call transcription synced to contact records, zero manual data entry, sub-500ms latency on CRM updates. Prerequisites API Keys & Credentials You'll need a VAPI API key (generate from your VAPI dashboard) and a Twilio Account SID + Auth Token for phone integration. Salesforce requires OAuth 2.0 credentials : Client ID, Client Secret, and a registered Connected App in your Salesforce org (Setup → Apps → App Manager → New Connected App). System Requirements Node.js 16+ with npm or yarn. A publicly accessible server (ngrok for local development, or AW