joyn is a market brand for RCS launched by GSMA. By combining with mobile phone number, joyn brings messaging and rich voice capabilities in an all-IP world, including image sharing, video sharing and file transfer.
What is joyn by Juphoon?
We are officially offering RCS-e client under GSMA-licensed joyn brand that combines all the communication ways and helps operators compete with over-the-top (OTT) service providers. It leverages the "no registration, it's just there, it just works" principles of RCS-e and supports voice call, instant message, file transfer, image share and video share.