The tools used to make phone calls in the United States changed over the past forty years.In the 1970s, nearly all calls required an AT&T handset.This means that Apple likely could update Face Time for i OS 6 users but is choosing not to, most likely to encourage upgrades to i OS 7.
It lets you do things you simply can’t with other computers.
There are lots of ways to connect with people these days: Skype, Google Hangouts, or Facetime.
But the single most reliable method of having a real-time voice conversation continues to be a phone call.
Skype and Whats App consumed an average of 12.3MB and 12.74MB of mobile data during video calls.
All calls were made on Vodafone 3G network in Delhi-NCR telecom circle.