Ok let me try to explain you are correct this is data only sim.
But it works exactly similarly like your sim in mobile.
From network point of view it's no different. It has a phone number etc. But just limited you can't make or receive calls or sometimes text.
It depends on Cubic what sort of contract they have in place with the local mobile operator or operators.
5G will always be 5G, 4G would always be 4G.
So data restriction is what cubic and local operator have contract it depends on that.
Search IOT you will get more insight.
Indeed it's said it's throttled which is worse. They buy data cheap sell it expensive. When abroad I buy cheap Japanese data but they use a network which runs much faster (cheap to me). When demand isn't high on the network its as fast as a normal 4g, but when demand is high they throttle the cheapskate customers (that selling off bandwidth has a name). Giving priority to those that pay more... normal rates. Cubic so the story goes throttles the data the same .
You won't be able to change the esim bit since that is how it is unless the hacking of mib3 has taken off. Someone might have done it but all hacking is done on a workbench like early mib2 so you'll be stuck with high cost cubic, slow speed via the esim.
Cubic Telecom’s Data Plan service is an in-car Wi-Fi hotspot service provided by Cubic Telecom that gives you an uninterrupted high-speed internet experience, whether you are keeping in contact with friends and family, enjoying games and entertainment, or conducting important business.
seat.cubictelecom.com
www.smurfitschool.ie
Softbank... hmm network I use in Japan. Basically Cubic makes money by buying cheap, selling expensive but for some 4g operators they sell cheap as well.
It's a business model. Has some weird settings in the Japanese one of it as you pickup the card from hotel reception or collection point and work out the commands you put in the tablet. No money will be returned if it doesn't work say the instructions. Japanese business practice. So far, so good.
Better off using a hot-spot with your own data sim in the UK. I buy Amazon EE data sims for my tablet in the UK and bin the sim each year. Currently £63, 120gb a year. People get hot bothered about these cards but they are really tasters, keep the card and pay normal EE rares or bin it and buy cheap.
For Cubic you don't know what it might cross subsidise in the platform or just a little money earner. If I had mib3 I'd just hot-spot onto my annual disposable EE sim.
It's these parameters I fumble with after a 12 hour flight to get these services.... which have a name working on my device
en.m.wikipedia.org
Basically the esim in these cars will be piggy backing on a well known network we recognise, but they have bought cheap bottleneck data. It's demand pricing, fixed to them variable rates to the user. The data rate is reduced in busy times. They would claim you are only getting the data you need. Whether it's IOT I pass, like AI banded about. Go back to first principles
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