Cisco Unified Presence Server

​Collects information like whether a user uses telephone, computer or video terminals. Applications like Cisco Unified Personal Communicator and Cisco Unified Call Manager help staff to communicate with their colleagues more efficiently with a more efficient method. Cisco Unified Presence Server collects information of third parties that use Cisco Unified CallManager and SIP and instant messaging systems on the network and shares this information with third party service and applications like Cisco IP Telephones, Cisco Unified Personal Communicator, IBM Lotus Sametime and Microsoft Live Communications Server 2005.