If a fax is displayed with a Not delivered message in History, make sure there is a fax machine answer on the other side. It sounds like
Pshkkkrr chchchch *ding*ding*ding*
You can dial that number from your phone to make sure you can hear that.
Then go to the [History] screen > Open your recent fax > and press Resend the fax.
You won't be charged for faxes that weren’t delivered.
If you find any problems with delivery or calculations please send us a message (Settings > Help and Support > Send Feedback) with details of the issue. Also, you can send us your documents and the number, and we will resend this fax for you. Free of charge.