Asterisk Phonebook is a common shared phone book
directory built for Asterisk PBX. It stores names
and numbers into a database which is used by
clients. In addition, the central directory can be
opened by snom phones, in which the XML-side of
the Asterisk PBX is fetched. Incoming calls are
displayed with their name, and number-to-name
resolution will look up from the local and global
phone books. Calls from PSTN resolve through the
landline provider.