System Management207System ManagementThis chapter provides operating instructions, such as managing directory, call history and dualscreen. Topics include: Directory LDAP Call History Search Source List in Dialing License System Integrated with Control SystemsDirectoryVC800 system can display: local contacts, Yealink Cloud contacts and YMS contacts. Local contacts: The VC800 system can store up to 500 local contacts and 100 conferencecontacts (you can configure conference contacts only when multipoint license is importedto the VC800 system). A conference contact consists of one or more local contacts. You canestablish a conference call quickly by calling conference contacts.You can import or export local contact list to different systems to share the local directory.The system only supports the XML and CSV format contact lists. You can manage localdirectory via web user interface, remote control and the CP960 conference phone. Yealink Cloud contacts: If you log into the Yealink VC Cloud Management Serviceplatform, Yealink Cloud contacts will display in your directory menu. Yealink Cloud contactsare created by your administrator. Only administrator can add, edit and delete YealinkCloud contacts on the Yealink VC Cloud management service, these operations will updateto VC800 automatically. You do not have the permission to do these operations on yourVC800. You can only search and place calls to the Yealink Cloud contacts. For moreinformation on Yealink VC Cloud management service, refer toYealink VC CloudManagement Service Administrator Guide. YMS contacts: If you log into the Yealink Meeting Server, enterprise directory will displayin your directory menu. YMS contacts are created by your administrator. Onlyadministrator can add, edit and delete YMS contacts on the Yealink Meeting Server (YMS),these operations will update to VC800 automatically. You do not have the permission to dothese operations on your VC800. You can only search and place calls to the YMS contacts.For more information on Yealink Meeting Server, refer toYealink Meeting ServerAdministrator Guide.Note StarLeaf/Zoom/Pexip/BlueJeans/Mind platform does not provide Cloud contacts for videoconferencing system.