If you are sending a fax automatically and the line is busy, the machine will automatically redial up to three times at five minute intervals.

If you are sending a fax manually and the line is busy, press Redial/Pause, wait for the other fax machine to answer, and then press Mono Start or Color Start to try again. If you want to make a second call to the last number dialled, you can save time by pressing Redial/Pause and Mono Start or Color Start.

Redial/Pause only works if you dialled from the control panel.