Twilio has made its International Outbound Calling service publicly available to all developers, allowing them to enable their applications to make calls to hundreds of destinations worldwide with granular controls for each country and rate group. This development comes after a developer contest partnership with Windows Azure, exhibiting at IT Expo in Los Angeles, and showcasing the power of telephony in the cloud through the Twilio REST API. The service is now accessible from the account panel, providing users with a simple way to find international rates and utilize this feature for their applications.