Our Services are modular and are charged per minute. This means if our customers need e.g. 2 weeks an engineer, the customer only pays 2 weeks. Well, this is normal in our industry. But if a customer need every day only couple of minutes and these minutes are not even planned then only the sum of all minutes per month are paid. So, e.g., if Microsoft releases a high security patch at 6 p.m. CET on a Saturday you can order our engineers to test this patch and after approval of the change apply it to the productive systems of our customer. We have provisioning systems in place to allow such a flexibility.
You pay ONLY what you consume - no minute more.