iBasis, a provider of prepaid international calling service, has launched Pingo EZ Dial, a new smartphone application that delivers automatic access to discount international calling rates for users of popular mobile devices including the iPhone, Blackberry, Treo and phones using operating systems such as Nokia Symbian, Windows Mobile and Google Android.

Pingo is iBasis’ only direct-to-consumer offering, a prepaid calling service that can be purchased via a web site. It allows users of the iPhone, Blackberry, and other smartphones to access the Pingo service, the company said.

According to iBasis, iPhone and Blackberry users can download EZ Dial from the Apple iTunes AppStore or via text message to their mobile devices. Then, whenever an international phone number is dialed or selected from the address book or contacts list, EZ Dial sends the call to the Pingo service.. The application complements existing voice plans and does not require users to connect to Wi-Fi.

Jayesh Patel, vice president at iBasis, said: iBasis is the second largest carrier of international voice traffic in the world, and for the first time, consumers and businesses now have a smartphone application that provides easy access to our low wholesale calling rates.

“The quality and reliability is the same as we provide for carriers worldwide. And, with no further contractual obligation, Pingo customers can make inexpensive international calls and escape the ‘financial stranglehold’ of operators’ international plans.”