It's a real shame but I've just cancelled my UnoTelly sub. I've tried but on my Technicolor 589 and Huawei 630b and the static routing option isn't even there. Therefore watching on my XBOX one is impossible.
Looks like I'll be sticking with NZ Netflix until I run out of things to watch, and since I was mainly watching UK and US Netflix I fear it won't be long before that sub will come to an end and I have to revert back to the old "dark" ways of getting my programming fix. This is made worse as I would have to subscribe to three services in NZ to watch the TV shows that we watched on the US and UK Netflix.
I suppose we can always remember the good times.
It might be possible to do it with the Technicolor, but not through the GUI. It is possible on the TG582n.
You need to telnet to the router to make the changes. Google how to set up telnet on your OS.
Click on http://www.geekzone.co.nz/forums.asp?forumid=178&topicid=191147, there are instructions for the TG582n which should be almost the same, if not identical, for your Technicolor 589. These instructions will redirect Google DNS traffic to your router. Add other DNS traffic as required.
For static routes use this as a guide.
A copy of the Telnet command line guide for your router can be found at the bottom of this link https://blog.rhysgoodwin.com/networking/technicolor-tg589vn-v2-dns-forwarding/