curl -X POST https://api.vozagent.ai/v1/calls/outbound \
  -H "Authorization: Bearer <token>" \
  -H "Content-Type: application/json" \
  -d '{
    "phone_number": "+15551234567",
    "assistant_name": "Voz",
    "first_name": "John",
    "last_name": "Smith",
    "notes": "Interested in a kitchen remodel quote"
  }'

{
  "call_id": "call-a1b2c3d4-e5f6-a7b8",
  "status": "queued",
  "direction": "outbound",
  "to_phone": "+15551234567",
  "assistant_name": "Voz",
  "contact_id": "c1a2b3c4-d5e6-f7a8",
  "is_new_contact": false,
  "created_at": "2024-01-15T12:00:00Z"
}