With iTaxofon you can make cheap calls with VoIP-providers (SIPNET, VoipBuster available now). Just install iTaxofon, register new account (if you not have it yet), set the program settings and make cheap calls over the Internet (VoIP).
iTaxofon can work on Wi-Fi, EDGE, 3G, GPRS networks available on iPhone. Available history of calls and integration with iPhone Contact list. iTaxofon use phone-to-phone service of the VoIP-providers.
iTaxofon's advantage is that you do not need to use various VoIP-softphones, sometimes providing unacceptable quality of conversation, depending on Internet quality connection and also use of much mobile Internet traffic. With phone-to-phone (callback) service, VoIP-provider's softswitch will call to your phone itself (it will be a regular incoming call to your mobile phone or any other phone) and will connect with called party at cheap rates of phone-to-phone service of VoIP-provider. With iTaxofon you can make calls on the street, in the car, outside the city and elsewhere and not worry about the quality of connection to the Internet.
Additional VoIP-providers will be available with iTaxofon update.