As it stands right now, I think the user would require a VPN connection to the network, which would allow the connection from the iPad/iPhone device to the codec the device is paired with on port tcp/443. There is no support at the moment that I can tell through Collaboration Edge.
I'm not the official Cisco answer however. :-)
I'll chime in though and say I think it would be a good idea to support collaboration edge, because it is a very common network design to allow Guests to connect only to a Guest wireless network, which would not have access to the codec on port 443 except possibly through the Edge.