11.02.2014 21:35 Uhr, Quelle: Engadget

Bolt offers free voice calls and replaces your Android dialer

When it comes to making free VoIP calls using your Android phone, you have a bunch of options. Services like Skype or Fring let you call other users for free, but you've got to remember to fire them up before you start dialing. Instead of using one

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