BELMONT, Calif.--(BUSINESS WIRE)--RingCentral, Inc. (NYSE:RNG), a leading cloud business communications provider and Silver-level member of Oracle Partner Network (OPN), today announced that its RingCentral Office solution is now available in the Oracle Cloud Marketplace. The RingCentral solution enables an integration which merges cloud communications with cloud CRM to eliminate the barriers that commonly burden workflow efficiency such as searching for customer information when they call, tog