I am on O2, and the Denburn is my local exchange. Before Christmas BT upgraded the exchange to allow up to 20 Meg services. They did this to all the towns along the main Edinburgh - Aberdeen route. But this was just the backbone being upgraded, nothing to do with the main carriers (O2, Sky, Virgin) Then I looked into when O2 would be installing their equipment into the exchange, allowing us punters to get up to 20 Meg services (using a technology called Local Loop Unbundling, LLU). As far I was aware it was just upgraded for the BT and O2 service, so if you are on another carrier then you might not necessarily get the up to 20 Meg services.