What is the use of RCS application in Huawei HONOR?

RCS has two characteristics: Native original address book, which evolved from the local address book of mobile phone, not only provides the basic personal information of users in the traditional address book, but also serves as a richer function entrance; Secondly, global interconnection, RCS can make full use of the existing number resources of operators to achieve global interconnection. This technology is considered to replace the existing SMS/MMS service.