Just to rewind to the original question but first two points to note:-
1. If you remove your current landline package you may lose that number and have to go through the task of notifying organisations and friends of your new number.
2. If you remove your current landline package in favour of a VoIP or Wifi Calling scheme (Or Satfi) you will need to ensure that you can still make calls - especially to emergency services - in the event of a power cut.
Q1. Can you remove your landine from your package and just have broadband?
A1. Yes, providing you have or switch to an ISP that allows this. Savings vary
Q2. How do you make calls from home when you have no mobile signal?
A2. Use either Wifi Calling or VoIP which both work over the interenet. You'll need to check that your phone and phone service provider support Wifi Calling. For example Plusnet don't.
If your phone and provider support Wifi Calling then no additional hardware is required. Call costs come out of your mobile phone plan.
Q3. Could you use something like the Satfi in your home?
A3. Possibly but if you go the Wifi Calling or VoIP route you don't need this. I've only had a quick look at the Satfi but it seems that it needs its own Sim card which could mean a further cost, unless you use one of your existing sims. Also it still seems dependent on the quality of the incoming signal in the area.
Also if your not making many phone calls or texts it could be an expensive solution for just the occassional use as your current broadband mostly used.
If on the other hand it provided good 4G signal inside the home you could conceivably get rid or your broadband and landline and just use your mobiles for both.
Broadband speeds -
Assess your current speed. With only two people in the house could you get buy with a lower speed fibre option and save money
Mobile phone charges -
Take a look at your usage patterns
. If you're not making many mobile calls at home you're paying for a service you're hardly using at that time and it may be cheaper to keep the landline and then consider PAYG and then buying extra data and calls when you need them e.g away in the van.
Final word on Netflix:-
Its possible on mobile devices to download movies for later viewing
. This could be done at home if you could predict what you want and then save on streaming when your away.
The hoops you have to jump through to save a penny or two