Enterprise IP Phone Using the Basic Phone Functions- 21 -2) Browse the specific contact list file in .XML format or .csv format, and then clickImport button. The imported contact lists will be shown in the directory.3) Move the mouse to the icon , you will see the notes for parameters. Themeanings of this icon on other pages is the same, we will not elaborate it one by one.4) Click the Export button to export the contact list.Note:Import/Export Contact List can be only set via Web interface.BlacklistIf you add a contact to blacklist, then the call from this contact cannot get through.The operation of blacklist is the same as contact.