Vonage Unveils Mobile App For iPhone, BlackBerry

Vonage Holdings Corp plans to offer discounted international phone calls to iPhone and BlackBerry users, as the Internet telephony company aims to expand beyond the residential market.

Consumers could save more than 50 percent for calls to dozens of countries if they download a free Vonage application to Apple Inc iPhone and Research In Motion BlackBerry devices starting on Monday afternoon, Vonage Chief Executive Marc Lefar said.