Files.com operates three types of WebDAV integrations.
Files.com itself can operate as an inbound WebDAV server, allowing you and your users to connect to your Files.com account via WebDAV. This allows you to useWebDAV to access any portion of your Files.com account, even folders that are syncing to other providers, such as Dropbox, Box, Amazon S3, etc.
Secondly, you can Mount an external WebDAV site directly into Files.com as a folder. Files.com acts as an WebDAV Client in this context, making that WebDAV-based external site available via the Files.com web interface, API, SDKs, and even other inbound SFTP connections.
Third, you can configure a scheduled Sync, where Files.com will synchronize its copy of a folder or folders on a one-way or two-way basis with the external WebDAV server.
This integration requires Files.com's Enterprise Connectivity Addon, which is included for free on the Premier or Enterprise plan.