I’ve been following the development of the eSIM on this blog for 6 years now and in recent years, I’ve been downloading and testing eSIMs to see how the process actually works. However, all of that was for learning and educational purposes only. But now, finally, I’ve used an eSIM ‘for real’ to get me … Continue reading Switching To eSIM in Slight Distress
After the positive experience I had with my first eSIM download (see part 1 and part 2 of this series), I wanted to explore the topic a bit more, and decided to purchase yet another eSIM via the Airalo web portal and download it to my device. I did this because I wanted to see … Continue reading Downloading an eSIM – in Practice – Part 3
In part 1 of this series, I’ve taken a look at the process of purchasing an eSIM online for roaming purposes and then downloading it to a smartphone. In this part, I’ll have a look at some technical details such as the home network operator of the eSIM, location of the Internet connectivity, performance and … Continue reading Downloading an eSIM – in Practice – Part 2
Back in 2017, I wrote quite a number of blog entries about an upcoming technology: Virtual SIMs, also referred to as eSIMs. As with many network technologies, it took a number of years before things end up in the mass market. But it has finally happened, and an interesting ecosystem has grown around downloadable SIM … Continue reading Downloading an eSIM – in Practice – Part 1
In the previous part of this series I gave a quick introduction to the difference between today’s handling model of a physical SIM that the user can insert in any device and embedded-SIMs to which subscription information can be downloaded. In part 2 I’ll now give a high level overview of how this download process … Continue reading Embedded-SIM Intro – Part 2 – SIM vs. eSIM User Scenarios
It was predictable in some way that sooner or later, I would want to do yet another ‘upgrade’ in the flight simulator and move to something bigger. After the turboprop Daher TBM-930, which I started flying last year, it was either a private yet or an airliner. There is lots of choice and in the … Continue reading Reality Bites – Flight Simulation – Part 10 – Moving to ‘the Bus’
Another crazy year, both good and bad in so many ways, is coming to an end, so here I go with time honored tradition of looking back to what moved me this year in tech! In The Wireless Domain Obviously, there’s been a lot going on in the wireless domain again. While some parts of … Continue reading Things That Moved Me in 2022
We are quite a bit into January 2018 already and I still haven’t come around to reflect which things from back in 2017 ‘moved’ me. But finally here we go this is my 2017 round up from cellular to history.
I’m pretty much done with my introduction series on eSIM Remote Service Provisioing now but there is one important topic still missing that should be mentioned shortly: Downloading virtual SIM cards into an eSIM is not only interesting for consumer devices such as smartphones, tablets, watches, etc. but equally, if not even more, to embedded … Continue reading Embedded-SIM Intro – Part 8 – Consumer vs. M2M
It is obviously a must that any SIM card works in any cellular mobile device. By and large that works pretty smooth today. There is rigorous testing in place and I only know a few cases where SIM cards and devices did not harmonize and software updates were required to fix the issue. In the … Continue reading Embedded-SIM Intro – Part 7 – Interoperability