Phoning abroad just got cheaper thanks to Ultra Mobile pushing free international calling to all of its service plans. With Ultra Zero, even if you're only paying $19 per month, you get 1,000 gratis minutes to call Canada, China, Mexico, Singapore and the UK. If you manage to use that up, it's one cent for each minute thereafter. In addition to that huge chunk of voice time and being contract-free, all of the carrier's plans include at least 50MB of 4G data and unlimited global texting. The company also cut its rates for calling Cuba, Haiti, India, Nepal, Nigeria and Poland by as much as half -- you know people in those countries, right? As long as you're rocking an unlocked GSM phone and slip in an Ultra Mobile SIM card, you should be able to reach out and touch someone for a whole lot less.