Rich communication service

Rich communication service is a communication protocol it use for apps mobile network text message. It is part of the broader IP Multimedia Subsystem. Unlike SMS, and multimedia message text message for size. multimedia message video low quality size. Google message has rich communication service has end to end encryption. Apple message blue message it works well but it outside Apple message it turn into green. It is free message Rich communication service. It non-free message for SMS and multimedia message.