Muratec F-320 - Manual (Page 103)

Setting the number of rings
Default setting: 2 times.
You can set how many times your fax machine will ring before answering a call.
Choose from 1 to 9 rings.
1 Press MENU , 2, 2, 0, 3, ENTER . The LCD shows:
2 Use the numeric keypad to enter the number of rings you want, from 1 to 9.
Note: If you enter the number except 1-9, the machine will beep briefly to
warn you that it can’t accept that setting.
3 Press ENTER to save the setting.
# Of Rings
(1-9) 2 times
Changing the default settings
4.4