Thank you for the question. I will ask Jody to speak in greater depth to the question itself.
The technologies we use, particularly telecommunications but also any other of the tools we use, are moving and are rapidly changing and we need to take advantage of those. Wherever possible we need to be using the most modern technologies to provide the best coverage possible. So the changes you've heard us talk about for the past year are a result of that kind of modernization as a result of technological change.
Jody will speak to this in greater detail.