A distinctive ring service may be available from your telephone company. This service lets you have multiple telephone numbers on one telephone line, with each telephone number having a different ring pattern. This may be useful for distinguishing between fax and voice calls. If you subscribe to a distinctive ring service, then follow these steps to connect the equipment:
Connect one end of the telephone cable that came with the printer to the printer LINE port 
.
Connect the other end of the telephone cable to an active analog telephone wall jack.
Change the distinctive rings setting to match the setting you want for the printer to answer.
Note: The factory default setting for distinctive rings is On. This sets the printer to answer single, double, and triple ring patterns.
From the home screen, navigate to:
> Settings > Fax Settings > Analog Fax Setup > Answer On
Select the pattern setting you want to change, and then touch Submit.