Vonage announces the availability of a free downloadable app for iPhones that enables one-touch international dialing using the recently announced Extensions service. A free Extensions app for Android devices was launched in September. These new Vonage Extensions apps allow customers to extend Vonage's signature unlimited international calling plans to their smartphones using an easy-to-use app, providing even greater convenience.

The new apps let users dial international phone numbers directly through their existing contact list so there's no need for users to re-enter numbers or leave the app to make calls. The international calling apps are available for immediate download at the iTunes App Store and Android Marketplace.

Customers can register for up to two mobile Extensions through their online accounts at www.vonage.com.