Viber Team
Ciao,
Questo è un rappresentante di Viber Media.
Mi scusi, il mio italiano non è così buono, così sarò scrivere in inglese.
3G costs are determined by your service provider.However,note that the bandwidth rate during a Viber call is approximately 240 KB per minute up and down, 14 MB per hour up and down. Texting may be different depending on the font type / language. Our test revealed 1 SMS to be 828bytes for 500 US English characters. Charges can of course be avoided completely if using wifi rather than 3G.
If you have any question about Viber - please feel free to ask.
Grazie,
Viber Team