Fax a Document or Photo : Connect a Phone or Answering Machine

Connect a Phone or Answering Machine
You can connect the NX300/305 Series to a phone line, and then connect a telephone or answering machine to the same phone line so you can use it to make voice calls.
Connect the phone cable from the wall jack to the LINE port on the back of the NX300/305 Series.
If you’re connecting the NX300/305 Series to a DSL phone line, you must plug a DSL filter into the wall jack or you won’t be able to use the fax or telephone equipment as described below. Contact your DSL provider for the necessary filter.

Epson cannot guarantee compatibility with VoIP, cable phone systems, or fiber-optic digital services such as FiOS™.
To use a telephone or answering machine, you need a second phone cable. Connect one end of the cable to the telephone or answering machine, and connect the other end to the EXT. port on the back of the NX300/305 Series.
Remove the cap from the EXT. port, if you haven’t already done so, before connecting a phone or answering machine.
If you’ve connected an answering machine, you may need to adjust the number of rings after which the NX300/305 Series picks up.
A phone or answering machine must be connected to the EXT. port for the NX300/305 Series to detect an incoming fax call when a phone is picked up. If a fax call comes in, and you pick up the phone without having a phone or answering machine connected to the EXT. port, the call will be disconnected when you hang up and the NX300/305 Series will not receive the fax.