estos ProCall One R2 Favorites
The data source Favorites gives you quick access to all the contacts you have stored in your favorites.

Outlook®
With estos ProCall One R2, you can use all contact data stored in your Outlook® client. Thereby, you may choose to only use individual contact folders or all contact folders for an Outlook® inbox. You can also choose to include public contact folders, if your Exchange system provides them and you have access to them.

Exchange Web Services
In addition to Outlook®, data can also be used directly from an Exchange server through its web service (as of Exchange Server 2007). Office 365 can also be integrated using this option, naturally.

IBM Notes®
You can use all IBM Notes® (= formerly Lotus® Notes) address books in estos ProCall One R2. Both the local address book and address books on a Domino server can be directly connected and contacts stored in them can be used.

LDAP data sources
With the option of connecting LDAP data sources estos ProCall One R2 makes a powerful interface available for accessing various contact data stocks provided they offer an LDAP interface themselves.

estos MetaDirectory
The estos MetaDirectory can be integrated into estos ProCall One R2 as a special case of an LDAP data source. In this way you can integrate data sources such as IBM Notes® or common ODBC data sources into estos ProCall One R2. Further information can be found in the estos MetaDirectory help file.

Phone books
estos ProCall One R2 permits the integration of phone books. At the moment, data from "Das Telefonbuch Deutschland", "Herold Austria" as well as "TwixTel Switzerland" can be directly accessed from estos ProCall One R2. You can also use KlickTel Server in connection with estos MetaDirectory.