| Managing the Directory | 1782. Configure and save the following settings:Parameter Description Configuration MethodView Switching Interval Configure the view switchinginterval.Note: the default value is 30seconds.The video images will beswitched automatically every 30seconds.Web user interfaceView Round Configure the number of videoimages to be switched at a time.Note: the default value is 1.Valid value: 1 - 7.Web user interfaceFull Screen Round Switches all video images(except for the active speakerand the content) at a time.Web user interfaceManaging the DirectoryThis chapter describes how to manage and configure directory settings. Your system provides local directory, Yealinkcloud directory, Yealink enterprise directory and LDAP directory.• Local Directory• Cloud Directory• Enterprise Directory• LDAP• Searching for Contacts• Placing Calls to Contacts• Meeting Whitelist• Meeting BlacklistLocal DirectoryYou can add, edit, delete, search or simply dial a contact from the local directory.• Adding Local Contacts and Conference Contacts• Importing a Local Contact List• Exporting Local Contact List• Editing Local Contacts• Deleting Local ContactsAdding Local Contacts and Conference ContactsA conference contact consists of one or more local contacts. You can establish a conference quickly by calling theconference contact. Conference contact is not applicable to VP59.• Adding a Local Contact• Adding a Conference Contact