I am working with an MVNO in the US and they are having network problems with one of their carriers, mainly related to data/internet. They are quite interested (1) to understand which would be the KPIs to follow to show to their carrier that the network is not working properly; (2) to know if they should develop those capabilities in-house or partner with a specific player; and in the second case what would be a short list of main players in this area?