: The fax number is blocked or invalid (e.g., it contains non-numerical characters). 3. Protocol & Hardware Failures
| Code | Category | Meaning | Quick Fix | |------|----------|---------|------------| | 000 | Transmission | No answer/busy | Verify number; resend later | | 003 | Transmission | No carrier | Reduce speed; check VoIP | | 026 | Transmission | Remote hangup | Check recipient’s machine | | 031 | Transmission | Training failure | Disable ECM; lower baud rate | | 045 | Transmission | Corrupted page | Recreate PDF; lower DPI | | 550 5.1.1 | Email | Invalid to-address | Check fax email format | | 552 5.2.3 | Email | Attachment too large | Compress PDF to <10 MB | | 554 5.7.1 | Email | Unsupported file type | Convert to PDF/TIF | | 101 | eFax | Bad number format | Use +1 for US numbers | | M14 | MetroFax | Missing cover page | Enable cover page in settings | | FREE-01 | FaxZero | Daily limit reached | Upgrade or wait 24h | fax 2 mail error codes
: No Answer. The destination number rang, but no device picked up within the allowed time. Confirm the number is active and set to auto-answer. DIAL_NC / DIAL_TO : The fax number is blocked or invalid (e
These errors occur when the fax server attempts to call the destination number but fails to establish a connection. The destination number rang, but no device picked