Joyn RCS-e service provide chat, file transfer and video chat functionality, and is available on carriers such as Vodafone, Telefonica, Orange and other carriers. Much like SMS and WhatsApp, it is the carrier’s own messaging service, and due to being built into the infra-structure is expected to offer reliability and quality of service improvements over current over the top solutions.
You can also send pictures, videos and files directly, and even chat to PCs and smart TV’s.
The app will only work if your carrier supports it. The list includes Vodafone Spain, Vodafone Germany, Vodacom South Africa, Movistar, Orange Spain, Deutsche Telecom and MetroPCS.
The free app can be found in the Windows Phone Store here.