Originally Posted by draver

Here is my final update on my Motorola Edge 2022 Android phone as a pass through WiFi hotspot.

After a 17 day cruise with transatlantic crossing, I am happy to report that the functions I hoped would work were all successful. The Android WiFi pass through was flawless and provided a reliable hot spot with expected speeds and connectivity. I set up both of our iPhone 14 Pro Max' on IMS function in foreign ports and they tested and worked perfectly for both US calls and calls to each other while roaming internationally. I have been reviewing my T-Mobile Data Usage. It reports nothing but WiFi calling with two exceptions to local numbers in Barcelona as I expected. Shipboard WiFi calling was also quite good, even at the slow WiFi service in the middle of the 6 day Atlantic crossing. T-Mobile does not reliably allow account login outside the general North American region, so I could not check my usage stats once we began our crossing. I had some 20-30 minute chats with tech support over WiFi while at sea with no charges. Also, on the ship we could call each other for free due to our unlimited WiFi data packages. Be certain you are on WiFi only for this however, for the calls are free on WiFi, $6 a minute on the ships cellular service!

For other T-Mobile users with the 5 Gb, free high speed international data roaming service, I see that the international data use DOES NOT count against your regular data plan. I saw this effect using my phone in Mexico then other nations whle traveling this past January. The high speed 5 Gb Mexico roaming service is independent of the international 5 Gb data bucket. This bookkeeping method saves my main voice line the Kickback $10 @<2 Gb reward, while allowing each number a full 5Gb of high speed international roaming service. This is actually a pretty big deal to me, since I have often touted using a dual sim second line for data roaming while keeping your main line active for calling & texts. I now can count on having the free 5 Gb int. roaming data for each of the dual sims in my daily driver while overseas. So, I end up with 10 Gb of high speed data roaming per billing period.