Atos SE, a global leader in digital transformation, and RingCentral, Inc. (NYSE: RNG), a leading provider of global enterprise cloud communications, collaboration, and contact center solutions, today announced the expansion of their strategic partnership with the launch of a co-branded UCaaS solution called Unify Office (UO) by RingCentral. In addition to the system integrator relationship announced previously, the expanded partnership will now include Unify Office as the exclusive UCaaS offering for the 40 million user installed base of the Atos Unify product family. Unify Office is expected to be available starting August 31, 2020.