TECHnalysis Research president Bob O'Donnell writes columns for the Tech section of USAToday.com and those columns are posted here.
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February 11, 2026
T-Mobile's new Live Translation service uses AI to translate phone calls without needing an app, breaking down language barriers for customers.
By Bob O'Donnell
Think AI-powered tools like Gemini and ChatGPT are only good with text-based input? Think again. They’ve now gotten significantly better at understanding and reacting to human speech − and the implications of that are big.
One of the most impressive applications of AI-powered speech processing is real-time translation. Being able to speak naturally in one language and then have an AI application convert it to another so that you can comfortably converse with someone who speaks a different language is pretty amazing.
Until now, however, you’ve had to have an app for that, which meant finding the right one, installing it, configuring it and remembering to launch it before you need to use it. What if by simply making a call on your mobile phone, then entering a few extra digits, you could have that same type of experience?
That’s exactly what T-Mobile announced at their recent Capital Markets Day event. Dubbed Live Translation, T-Mobile's contracted customers can now sign up for a beta version of the service (the full service is expected to launch later this year).
How does T-Mobile's Live Translation work?
Live Translation allows any phone call made on any mobile phone over a 5G or even 4G network to have real-time language translation. The one catch is that at least one of the phones (but not both) has to have a T-Mobile account. The way the service will work is that once a connection is made, the person with the T-Mobile account enters a few digits on their phone (*87* to be exact) and that will enable the real-time translation service on the network.
When you first set it up, you select your preferred language (or languages) from the 50+ options initially available. However, the models are smart enough to recognize the languages being spoken and automatically switch to them if necessary.
Practically speaking, what this means is that if, for example, you have family or friends in France you regularly speak to and set French as a default choice, you aren’t limited to that selection. If you take a trip to (or just call someone in) Vietnam, the service will notice the country code, automatically switch to Vietnamese and allow you to, for instance, make a reservation at a local restaurant, in Vietnamese.
You don’t have to travel or have friends and family that natively speak other languages to take advantage of this feature, though. Ordering food from your favorite local ethnic restaurant, for example, or interacting with people in all kinds of environments who are more comfortable speaking their native language can be a lot more effective if you can simply call them and chat − even if you do it in person.
What about privacy on Live Translation?
One important privacy-related point to note is that, as with any type of AI-powered technology that does customization based on your own data, Live Translation does need to hear the audio of your call to do the translation. However, T-Mobile made it clear that it does not record anything − it just processes the data. Still, it’s something you need to be aware of.
How does it work?
In terms of performance, I haven’t had a chance to try the service yet, but there’s bound to be a small bit of delay as translation occurs. Whether that impacts the effectiveness of the conversation remains to be seen.
It’s clear, however, that T-Mobile has thought through a lot of real-world scenarios to make sure the translations are as efficient as possible. For example, if you and your family and friends end up having a number of Spanglish (or other multi-language) conversations, the tool is smart enough to translate only the words that are not in your native language.
Live Translation allows any phone call made on any mobile phone over a 5G or even 4G network to have real-time language translation.
As a technologist, one of the most impressive parts of the launch is the manner in which it uses the mobile network as a source of computing intelligence. In fact, this is the main point that T-Mobile was promoting at its event. This is important because it represents one of the first concrete examples of the extra capabilities that 5G networks were supposed to offer.
For decades, the telco carriers have talked about wanting to be more than just “dumb pipes” that simply deliver voice and data from point A to point B. In reality, however, that’s all they’ve done, up until now.
With this new Live Translation service, T-Mobile has built intelligence directly into the network. When you think about the implications of this, it’s not too hard to imagine other possibilities. For example, what about a future service that allows you to directly call and interact with an AI agent like ChatGPT or Gemini without needing an app of any kind?
To be clear, T-Mobile hasn’t announced anything of the sort, but I wouldn’t be surprised if they were working on something like that. It’s also going to be very interesting to see how AT&T and Verizon react to this and what kind of services they will create and offer.
Given the advancements in AI, there are certainly many different ways to do translations on the fly. For those of us who still use their phones to actually talk to people, the ease of doing so via a phone call is hard to beat. Not only do you get the nuances of tone and inflection, by letting people speak in whatever language they feel most comfortable, you’re bound to have a more effective and meaningful conversation.
And in today’s often tense and confusing world, that can be a beautiful thing.
Here’s a link to the original column: https://www.usatoday.com/story/tech/columnist/2026/02/11/t-mobile-real-time-phone-call-translation/88605297007/
(As an industry analyst, author Bob O’Donnell works and consults with a wide range of tech companies, including T-Mobile.)
USA TODAY columnist Bob O'Donnell is the president and chief analyst of TECHnalysis Research, a market research and consulting firm. You can follow him on Twitter @bobodtech. |
