Convergence between communications and collaboration technologies will radically change the way people communicate in the next decade. Unified synchronized communications (USC) combines myriad technologies and devices in a single platform, streamlining management of communication channels and reducing end user complexity. Major vendors are developing Session Initiation Protocol (SIP)-based platforms, which bridge multiple locations and technologies with a single user interface and add presence management to the user experience. With USC, business communications are no longer location-specific (e.g., office phone, mobile phone, work email address, personal IM address), and workers can prioritize how and in what manner they are contacted. In the next one to four years, early-adopter companies will implement USC in departments in which knowledge workers must share information on a regular basis, are distributed or mobile, and driven by productivity improvement objectives. Within five to six years, USC will become recognized as the new standard for effective business communications as up to 33% of Global 2,000 firms complete partial USC rollouts.