Microsoft Integration is a feature that some online fax providers offer. As the name suggests, it allows users to send a document directly from Microsoft Office applications without having to switch out of that application.
Different providers will offer different versions; some integrate with Microsoft Office 2003, 2007, 2010, and Office 365, while some only integrate with Office 2003 and 2007. Either way, the integration will allow users to fax Word, Excel, PowerPoint, or Outlook documents directly from Microsoft Office.
Providers that offer Microsoft Integration include:
Most providers will ask you to sign into the service from Microsoft to get started. You can then fax directly from the application.