Be more productive and connected with significant cost savings is the Holy Grail for firm’s looking for profit maximization. In this paper, we are looking at Unified Communications and Collaboration (UC&C) technology through Unified Theory of Acceptance and Use of Technology (UTAUT) to understand the likelihood of the technology acceptance within organizational culture dimension. We investigated the organizational culture impact on the adoption of the UC&C technology in 25 countries. We found that organizational culture influences adoption of the UC&C technology in organizations and we confirmed UTAUT model as valid one for technology adoption in large organizations.