Verizon, AT&T, T-Mobile, and Sprint are working on ‘Cross-Carrier Messaging Initiative’ to simplify texting between all devices.  Traditional texting falls short of other messaging apps, but US carriers are collaborating on a new standard that aims to usher in next-generation features.

https://www.pcmag.com/news/371565/major-us-carriers-were-taking-over-rcs-rollout

Verizon, AT&T, T-Mobile, and Sprint issued a single press release laying out its strategy to replace SMS. The joint venture, known as the Cross-Carrier Messaging Initiative (CCMI), takes on Rich Communication Services (RCS). Built by the GSM Association, RCS unlocks access to an upgraded communication experience.

RCS enables features such as read receipts, a real-time typing indicator, and larger file attachments. Businesses, too, benefit by using RCS to directly communicate with their customers.