I can take this one as the only technical guy on the panel.
It is complex. First, any legacy network, normal IP network, will not work with this technology. That's a big challenge for all the carriers within Canada to upgrade every part of our network, or work with the carriers we interconnect with to upgrade our networks. That's one challenge, and obviously we can't mandate another carrier to do it faster for us so we can have better service for our customer. We don't have that reach or that jurisdiction.
Second, the devices are not the carriers' devices. They are the manufacturers' devices. They choose when they need to implement a certain feature within their devices. It's very hard for any of us to tell when the smart phone manufacturers will decide to implement this. Then what do we do with the wireline part? How do we handle home phones and provide similar service for home phone users?
As an industry we need to come together. We already set together the CSTGA. That's the governance of it. There's the policy administrator. There is the token administrator for all these parties to exchange and make sure there is an authority that will validate these calling numbers.
I'm afraid I can't answer your question in a straight fashion because many components are outside our control in all our cases.