Intents are one of the things I've always loved about Android. I set Hangouts as my default application for phone calls and spent the summer traveling with dat

Intents are one of the things I've always loved about Android. I set Hangouts as my default application for phone calls and spent the summer traveling with data SIM cards in the countries I lingered in. I was able to make calls anywhere in the world for about 1MB per minute. It worked well enough abroad that I signed up for T-Mobile's $30/5GB plan when I came back to the US. All my phone calls are routed over my data plan, and none of the apps on my phone need to know that to keep working correctly. I can open Yelp and tap Call in a restaurant listing to make a VoIP call in Hangouts just as easily as someone on a traditional plan can with the Phone app.