Lexmark MX321
From the control panel, navigate to:
> Settings > > Fax > > Fax Defaults > > Analog Fax Setup > > Fax Receive Settings > > Admin Controls > > Answer On >
Select the ring pattern.
Apply the changes.
Connect your mobile device to the Wi‑Fi network of the printer.
Connecting a computer to the printer using Wi‑Fi Direct is easy. Here are the steps.