Xerox WorkCentre PE120-120i-3124 - Manual (Page 37)

Getting Started 2.11
2
Connecting Telephone Line
Plug one end of the supplied telephone line cord into the LINE
jack on the machine and the other end into the wall jack.
If you want to use your machine to receive both faxes and voice
calls, you will need to connect a telephone and/or answering
machine to your machine.
Plug your phone or answering machine cord into the EXT jack,
as shown below.
To the wall jack
To a phone or answering
machine