the quality is not that good, i always heard noise when I talked to someone. / S( D6 F7 I/ f% q. f$ k. XBut it worth to get it, at least it is free app you can get. ) S/ d; e, m/ y9 l : e' u9 M- c* rGmail's call phone function is cool too, its quality is awesome, also free to call within Canada and USA, but so far i didn't find an app for iphone yet. There is one is called black swan, but it only works for usa users.