The administrator can configure one or more phonebooks
To make sure that every user has all users in the system in his phonebook just click Everyone checkbox. There is no need to create any departmental phonebook
Member User Groups - List of user groups to be included in the phonebook. If a user is in multiple groups, they will be included only once.
Consumer User Groups - List of user groups to use the phonebook.
TIP: If you want to see yourself in your phonebook, make sure that you are a member of both a Member User Group and a Consumer User Group
Also you have the option to import contacts from csv/vcard files or google accounts