There are mobile operators who have RCS in their network but practically no one really use it. The number of RCS deployments – in contrast to VoLTE or VoWifi is decreasing and more than once I’ve heard that RCS is a zombie. These days when it comes to texting over 4G we mostly still rely on the old good SMS, using IPSMGW. Of course, we can choose from plenty of OTT technologies as WeChat, WhatsApp, Line, etc. However SMS is still a must to have for all the mobile carriers, even though they are not making much money on it.
RCS standard is everything but simple and straightforward. The operators were that afraid, that they’ll become only connectivity providers that they created an omnipotent service which no one was able to implement. For many years we struggled during the integrations and to find a really working RCS client was close to impossible. One of the better clients was Jibe. Jibe was bought by Google the last year and many were wondering what is the Google up to..
Recently Google along with Sprint in US and Rogers in Canada announced that they’re rolling out with their RCS Messaging. More info in RCS Universal Profile post. Hard to predict how successful it will be this time, but chances are, we will see RCS around in 2017.