the quality is not that good, i always heard noise when I talked to someone. , J& g' w/ Y' H" d) m: JBut it worth to get it, at least it is free app you can get. ' I" k& o: [6 q8 k! t6 l, c# Q+ p+ H3 z+ b% ~* i$ V# m: W
Gmail'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.