Rich Communication Services (RCS)
Rich Communication Services (RCS) is a communication protocol between mobile telephone carriers and between phone and carrier, aiming at replacing SMS messages with a text-message system that is richer, provides phonebook polling (for service discovery), and can transmit in-call multimedia. It is part of broader IP Multimedia Subsystem. It is also marketed as Advanced Messaging, Chat, joyn, SMSoIP, Message+ and SMS+.
See Melrose Labs RCS Messaging
Melrose Labs: Our mission is to deliver pivotal services in cloud communications across mobile, fixed-line and internet for enterprises of all sizes. Through these services, we help businesses and other organisations communicate better with their staff and customers, and by doing so increase their success.