Recommended hardware depends on the traffic coming into the website. It is very important to have a fast and stable Internet connection to the server. It is not recommended to use VPS hosting. Use a pure Dedicated Linux server instead for better performance, stable and smooth video connection.
We recommend to use our hosting. We are working with 2 data centers: the first one is in Europe, and the second one is in the USA. Our prices are competitive and have both hosting and software support at one company, so it will help to fix possible issues faster and efficient. However, if you choose to be hosted with another company it is not a problem. Contact us to get hardware recommendations.