# Overview

This section provides information to help you understand and plan the changes that you must make to your software configuration when you add NuPoint Fax applications to your NuPoint Unified Messaging server. It describes all of the software options for NuPoint Fax, and explains how they are used in the various applications.

The following topics are discussed:

- Planning Outside Caller Access

- Fax Class of Service Parameters

- Adding NP Fax options to Class of Service

- Planning Fax Mailboxes