curl -X POST "https://app.famulor.de/api/user/make_call" \
-H "Authorization: Bearer YOUR_API_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"phone_number": "+4915123456789",
"assistant_id": 123,
"variables": {
"customer_name": "Max Mustermann",
"email": "max.mustermann@example.com"
}
}'