Make the necessary settings to use IP fax.
Set the Printer Individually Using Web Config
Enabling Sending and Receiving IP Faxes on an Intranet (Intranet Settings)
Settings for IP Fax when Using VoIP Gateway
Batch Setting Using Epson Device Admin (Configuration Template)
Operation Flow of Epson Device Admin
Enabling Sending and Receiving IP Faxes on an Intranet (Intranet Settings) <Epson Device Admin>
Enabling Sending and Receiving IP Faxes Using G3 Fax-compatible Devices (Through a VoIP Gateway) <Epson Device Admin>