In a statement to The Verge, Google has confirmed that it plans to put all of Allos resources into smoothing the way for RCS or Rich Communication Services. This is a new standard that it set to replace SMS and will soon be compatible across most major carriers around the world. The Universal RCS Profile supports read receipts, typing notifications, larger image and video file sharing, and will work over Wi-Fi and LTE.
The consumer name for this platform will simply be called Chat. Rather than Google try to make an iMessage Clone, it has decided to embrace the existing RCS Profile and make it the default messaging experience on Android. There wouldnt be a separate Chat app, this would all take place on the Android Messages app. Chat services will be flipped on soon, but the timeframe may vary by carrier.
If the other person doesnt have Chat enabled or uses an non-Android phone, SMS will be the default fallback, so there isnt any plan to phase it out. Google has already announced its partnership with many phone makers like Huawei, Motorola, LG, HTC, and Sony to use Android Messages as the default SMS/Chat app. As of the time of this post, there are 55 carriers and 11 smartphone makers that are on board with moving toward towards supporting Chat as the successor to SMS.
Because the standard is implemented at the Carrier level, it is not possible for it to be as secure as other IP-based messaging apps that offer end-to-end encryption. Although Google is leaving the transmission of the message content to the carrier, it wants to improve the user experience by updating the features of the Android Messages app itself.
Web-based Messages interface
A couple of expected features coming to Android Messages includes web-based desktop interface to carry Chats over to the desktop, Smart Reply as weve seen in Allo, Google Photos integration, Clearer organization of messages, better search features, and more expressiveness, which could mean we might see more stickers come to Android Messages.
The RCS rollout has been long and shaky, with Google behind its rollout, Android users will finally have a better default messaging experience.