Subject roaming interesting and important year round, but especially relevant in the summer holiday season. When leaving his home region continues to operate the phone and we will not remain without a connection to other cities and countries, it's just wonderful. But let's not paint the detail all the many benefits of "always be in touch" is for us to do advertising. Let's talk about some of the features of processing and billing calls while roaming in other words, how it works, and what we are paying. And how to pay less without sacrificing personal comfort.