The end is nigh for roaming charges in the EU
As of 15th June, Europeans will be able to travel in the EU without roaming charges, after representatives of the European Parliament, the Council and the Commission agreed on how to regulate wholesale roaming markets.
Until now, when you travelled to another EU country, your mobile operator would bill you at a different, higher rate for your mobile communications (phone calls, SMS, data) in that country.
Over the last 10 years, the EU has progressively required mobile operators to considerably reduce these roaming charges, in favour of consumers. If you travel regularly to other EU countries, you have probably already experienced the sharp decrease in roaming prices over the last decade.
As of 15 June 2017 the last roaming charges that you were still paying to your mobile operator will disappear when you travel to another EU country. Every existing or new contract that includes roaming services will, by default, become a roam like at home contract. The new EU rules cover data services, voice calls and SMS.
An FAQ is available to read here: https://ec.europa.eu/digital-single-market/en/faq/frequently-asked-questions-roam-home
The Q + A PDF can be downloaded from here: https://ec.europa.eu/digital-single-market/en/news/roam-home-questions-and-answers