Twilio
by Deleur Apps
View and activate on the Corona Store
The Twilio plugin adds VoIP to your Corona app. It relies on the Twilio network infrastructure and integrates the Twilio Client into your application. Use it to create app-to-app voice chat over IP, or use it to dial any telephone number in the world. With Twilio Client you are no longer restricted to building applications that rely on interacting with traditional telephones. A Twilio account is required to make full use of this plug-in.