Hi jlephew,
Thank you for using the Xerox forum.
The user and administrator guides are available on the Xerox 5330 Support site
I would suggest that you review the following to determine if this would provide a solution.
System Administrator Guide - English
There were a few sections that may help but I believe this is what you wanted.
If that does not resolve your issue you may consider contacting our specific product support experts at the following link:
Can anyone tell me the proper procedure to DISABLE fax receiving on a Workcenter 5330? I have changed the options for receive mode on the control panel but the 5330 is still picking up the line (although it no longer recieved the fax). The machine will need to be able to send faxes, so unplugging it is not an option.