The biggest wireless network operators in the US announced in 2019 that they would jointly launch a Rich Communications Services (RCS) messaging app sometime in 2020. Under the auspices of their new Cross Carrier Messaging Initiative (CCMI), the companies said in late 2019 they would use vendor Synchronoss Technologies to handle the technological logistics of the effort. And in May 2020, Synchronoss said "we continue to believe the RCS-based advanced messaging service will be launched by the CCMI joint venture in 2020." But it was not to be. "While we're not at liberty to speak on behalf of CCMI and no launch date for the service has been formally announced, Synchronoss is continuing to move forward with preparations and look forward to helping bring RCS-based messaging to US subscribers," the company said in response to questions from Light Reading.