
After years of juggling physical SIM cards, experimenting with various eSIM apps, and constantly asking ourselves “Which plan are we on right now?”, we finally reached a point where simplicity became more valuable than chasing the cheapest short-term option. A few years ago, we decided to sign up for T-Mobile in the US (two-year plan with free phone upgrade), choosing a plan that includes unlimited US calls, texts, and 5 GB international data a month (unlimited data while in the US) for both phones for US $100 a month (about NZ $168.20). For full-time travelers like us, this one decision removed a surprising amount of time and mental clutter.
At the time, our dear friend Gerhard gently reminded us of something we hadn’t fully appreciated before: WiFi Calling. His timing couldn’t have been better. He explained that as long as we had a strong internet connection, we could make and receive calls as if we were physically in the United States, no matter where in the world we were. That simple reminder has saved us money and stress.
WiFi Calling is one of those features that quietly exists on most modern smartphones, yet many people don’t realize how powerful it can be. Once enabled, you’ll usually see the words “WiFi Calling” appear at the top of your phone screen. It’s subtle, but before making any call, we always pause and check that those two words are visible. That quick glance has become second nature.
Setting it up is simple and straightforward. On your smartphone, navigate to Settings, then look for Phone or Connections, and toggle WiFi Calling to ON. After that, WiFi Calling works automatically, stepping in whenever mobile coverage is weak or nonexistent. The call still uses your phone’s dialer and feels completely normal, which is part of the magic.
Why are we so careful about checking that WiFi Calling is active? Because without it, T-Mobile international calls are charged at 25 cents per minute. That may not sound like much, until it is. It’s imperative to ensure your call is actually routed through the phone’s WiFi connection. You do not need to have a “live” cellular connection with your provider; the call simply rides on the internet, bypassing international calling fees entirely.
Last week provided a perfect real-world example of why this matters. Tom called Costco regarding price reductions on our upcoming cruises. That call, entirely worth making, lasted 2.5 hours. See that post here. Thanks to that conversation, we saved over US $6,000 (NZ $10,087.45) on four future Azamara cruises. Had that call gone through T-Mobile’s international rates instead of WiFi Calling, it would have cost us US $127.50 (NZ $214.35) in phone charges alone. Saving thousands was rewarding enough, but saving on the call itself felt like an extra little victory.
What we appreciate most is the freedom this gives us. We can call family and friends or handle business matters at our leisure, without watching the clock or calculating costs in our heads. The only issue is time zone differences, which we work around. That peace of mind is invaluable when you live a life that spans continents and time zones.
That said, we’re also very mindful about when we make calls. When we’re away from our holiday home’s reliable WiFi, driving, sightseeing, or simply on the move, we don’t make international calls unless we’re connected to WiFi. If we’re in a café or restaurant offering free WiFi, we can make calls there as well, provided we once again confirm that WiFi Calling is active.
We deliberately avoid using T-Mobile’s data connection in the car or while out and about, except for essentials like MAPS and other navigation apps, or in an emergency. Even though our plan includes 5 GB per month, we prefer to conserve that data for situations when WiFi isn’t available, such as during a power outage, a network disruption, or while traveling between locations. Experience has taught us that having data in reserve can make all the difference.
I hope this explanation is clear and helpful. If you have questions, please feel free to post a comment rather than sending an email. That way, I can share the answers with everyone who may be reading along.
Be well.
Photo from ten years ago today, January 26, 2016:




































