As I mentioned, we're talking about wholesale services. When we set any tariffs, when we look at them for the wholesale side, we look first at all of the costs that go into a provider's network and make sure they can recoup those costs. Then we look at potentially a markup. That's the term we use to identify common costs, such as overhead and so forth. Then, if there's any risk involved, we would look at whether there's a need to ensure that there's enough incentive to the person providing the network to continue to invest and to those using the service to actually invest themselves and go into offering innovative services from that.
We try to get the right balance and the right service level. It's a very complex and detailed analysis that we do.