Cisco Unified Communications Manager is an IP-based technology that manages voice calls. In addition to traditional voice calls, it can also be integrated with video, mobile, data and conference applications. Software and hardware are used to launch Cisco's Unified Communications Manager. Cisco Unified Communications Manager can support up to 40,000 users. For small businesses, Cisco also offers the Express option with Unified Communications Manager. Cisco Unified Communications Manager does more than traditional voice calls. The system and video conferencing calls enable multiple users to connect and instant messaging. Users can choose from desktop phones for video calls, or Cisco's TelePresence rooms can be used to organize real-time video conferencing. Cisco Unified Mobility is integrated into the product. With this solution, users can use a single number and voicemail box to use other devices as well as desk and mobile phones to answer calls. Cisco Unified Communications Manager can be installed using a manageable graphical user interface and a public or private cloud, on-site or remote environment or hybrid model.