# About User Data Source

The user data source is the system from which Speech Auto Attendant retrieves its list of users. The available sources are:

- NuPoint UM: this is the default user data source when installing a new NuPoint Unified Messenger system with the Speech Auto Attendant feature. All NuPoint UM mailboxes on the local server that have an FCOS with feature bit 92 assigned are included in the NuPoint UM data source.

- Microsoft Active Directory: use this LDAP data source for NuPoint UM or standalone systems if you are planning to use the Presence feature of SAA.

- MiCollab: this is the user data source for SAA when installed with the MiCollab version of NuPoint UM.

You must specify only one user data source.

When a system has been configured for a particular user data source, modifying that data source configuration affects multiple users on the system. For that reason, the user data source fields are disabled in order to prevent accidental changes. User data source configuration can be specifically modified using the Modify the User Data Source procedure.

Note: Changing data source configuration causes all users of the system to be initialized.

Some user data sources do not provide a mechanism for SAA to detect changes and refresh its user list. After adding, modifying, or deleting users, the changes may not be effective until the next scheduled automatic refresh (as configured in the Speech Auto Attendant parameters). You can force a manual refresh of the system in order to update the SAA user list before the next scheduled automatic refresh. See Update the User Data Source for more information.

Note: The Speech Auto Attendant feature requires that you enter the accented character for proper recognition of the spoken name. Ensure that your data source contains the accented characters. See Mailbox Names with Accented Characters for more information.

- Define a NuPoint UM Data Source

- Define an Active Directory

- Define a MiCollab Data Source