Configure these environment variables in Render to activate the voice agent:
TWILIO_ACCOUNT_SID=AC...
TWILIO_AUTH_TOKEN=...
TWILIO_PHONE=+1...
OPENAI_API_KEY=sk-...
Used for AI conversation
GOOGLE_CALENDAR_ID=...
GOOGLE_CLIENT_EMAIL=...
GOOGLE_PRIVATE_KEY=...
POST /voice/inbound
Set in Twilio console for your number
/voice/inbound to start receiving calls.