Xerox WorkCentre 480cx User Manual page 294

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You're connecting the WorkCentre with the
following:


PC (without a fax/data modem)


extension telephone


answering machine
From the Printer
connector
In this configuration, you probably want the answering machine to answer
incoming calls, but have the WorkCentre take over if the incoming call is a
fax.
9-24 Appendix
Answering
machine
From the EXT
connector
From the LINE
connector
Wall Outlet