The short answer
Open the status page to read the reason: busy line, no answer, no fax machine on the line, or a protocol error. Most failures come from the recipient's side and a second attempt later often works.
Verify the number using the number checker, and look at the recipient's opening hours, then send again.
Reading the failure
The status page gives the outcome of the call. A busy signal means the line was taken; no response means nobody picked up; no fax means the number answered with a voice or nothing. A protocol error means the two machines could not agree on how to talk.
A cancelled transmission, or a line with no carrier, points to a problem on the way. In each case the page tells you the status in plain terms.
What to try next
Check the digits first, then call the recipient to confirm that a fax machine is on and has paper. Business machines are often unattended outside office hours; the time zones page helps with international hours.
If the number is right and the machine is working, send again later. When it keeps failing, get in touch via the contact page and quote the fax reference.
Key points
- The status page states the reason for the failure
- Busy, no answer and no fax are the most common causes
- Confirm the digits, then the recipient's opening hours
- Contact us with the fax reference if it persists