T-Mobile, the fourth-largest carrier in the US, has announced global data coverage in over 100 countries at no additional charge. The third feature part of its "UnCarrier" branding, the data initiative will allow T-Mobile US users to travel country to country without having to worry about paying extra data fees - something phone service subscribers often complain about. 

"Today’s phones are designed to work around the world, but we’re forced to pay insanely inflated international connectivity fees to actually use them. You can’t leave the country without coming home to bill-shock. So we’re making the world your network – at no extra cost,” said John Legere, president and CEO of T-Mobile.

The free data, from China to India to Spain and the UK, will be available for customers signed up with T-Mobile's Simple Choice Plan beginning 31 October. Texting is also covered under the "make the world your network" feature, but voice calls will cost 20 cents per minutes in the same countries. The free service sounds limited to 2G speeds, though. T-Mobile will offer speed boosts for one day and 100MB for $15, one week and 200MB for $25, or two weeks and 500MB for $50. A global-compatible device is required.  

Stateside, T-Mobile says it has completed the rollout of its 4G LTE network early. It now covers 200 million people across the US, and T-Mobile of course is bragging of better speeds than on AT&T, Verizon, and Sprint.

As part of its UnCarrier movement, T-Mobile has been working to shake-up the wireless industry with new tactics. Early this year it did away with contracts and offered a payment plan for smartphones. After that, its Jump upgrade plan was unveiled, letting customers upgrade two phones per year for $10 monthly.