I've recently had mine installed. The first thing that happens is the Outside Box (NTD) which carries your fiber from the Pit to the House. Within limits, you get a say in where this goes, and this is Very Important.
- You will receive snail-mail notice of the intended install date. You Really Truly should be home for this, to show where you need the Box installed.
NBN will take notice of difficult internal installs like Not Enough Ceiling Space.
It helps plenty if your copper comes to the house in a conduit. There is nothing stopping you from installing your own conduit, provided it meets NBN standards.
So look for an external wall close to your computer, and route the conduit to there. Note that the Inside Boxes need to be fairly close to a dedicated power point.
- You will receive a notification from your chosen ISP when they intend installing the Inside Boxes. It is Very Important you are home for this.
If you haven't already, source your chosen Router and an ATA NOW. I chose an ASUS RT-AC68U and an Obi202, not simple Out-Of-Box installs, but very future-proof and configurable. The Obi will/should handle your 2 landlines and 2 numbers, and plugs into the ASUS. But there are several other combinations you could use. But get the hardware NOW!
You should also consider a decent Surge Protector if you don't already have one.
I personally decided to Not Bother about the Battery Backup. It won't support your computer and etc, and beside all my family have mobiles.
The ISP team will connect the Outside to the Inside, and perform a Connection Test. They will not help with your router. When they get a successful Connection they will say "Goodbye" and leave. Then you're on your Pat Malone and the fun begins.
I recommend you stay with your current ISP for the time being. Sign up for a 25/5 service which will be very easy on the wallet--you can always upgrade later. You will almost certainly wind up with new phone numbers, so experiment: have you tried VoIP? VoIP is Seriously Wonderful, and costs a heap less. If you decide to change ISP later, talk to your next intended vict\\provider and organise for your phone numbers to be ported over. It will take a while, so leave planning time.
- I know you don't like Whirlpool. But it's the Go-To place for tech troubles. Even if you don't post--and you don't have to--you can simply trawl through it looking for the info you will need. It's there, and easy to find even on a search engine.
I've tried to Go Into Detail without Going Into Detail, I could go on for hours. What will you do with faster uploads? Have you thought about Distributed Computing? NBN speeds make this worthwhile.