No one ever discussed it much until Voip.MS, and my impression is that they set their system up that way out of a deliberate strategy of differentiation....which was very effective for their growth.
I was doing a search for previous discussions about how multiple accounts are handled with E911 implementations and I came across this thread. It actually is more interesting to read with this thread's context in mind rather than the E911 threads.
I'm glad CC is back up and I hope no other provider has to go through what they have in the last month.
