How do you program frequently used numbers in Canon 2050P fax machine?

To program frequently used numbers in a Canon 2050P fax machine, first, press the "Menu" button. Navigate to the "One-Touch Dial" or "Speed Dial" option using the arrow keys. Select an available memory location, enter the desired fax number, and confirm by pressing "Set" or "OK." Finally, label the location with a name or identifier for easy reference.