Dr. Matt Yardley:

Some might do. The reason we are perhaps struggling with this is because different operators have different network configurations. Depending on what network assets operators have, one operator might be quite happy picking it up in exchange A, whereas another operator might not have anything there and may want to pick it up in exchange B. The network solution has to connect to those various points to serve its retail service providers. It is in its interest to do that because that is where its customers will pick up traffic.