Just started using LINE (from the google play store, a free mobile phone app) at home for free texts and phone calls over the internet. You just need an internet connection. Works from your pc too, which is great as I've always wanted to be able to send texts when on the pc. I guess it's like skype, but I've never used skype. texts/mms work great; but a bit of a delay when talking on the phone. Only tried it locally so far, anyone used it in Phuket/Thailand ?