Symptom
Outbound fax attempts using 8x8 Work for Desktop or Online fail. After two to three minutes, the following error is received: Internal Conversion Error.
Applies To
8x8 Work for Desktop
8x8 Work for Web
Internet Fax
Resolution
Ensure Compatible Attachment
Supported Filetypes
BMP | (Image) Bitmap Image File |
CSV | (Text) Comma-Separated Values |
DOC | (Text) Microsoft Word Document (Legacy) |
DOCX | (Text) Microsoft Word Document |
DOTX | (Text) Microsoft Word Template File |
JPEG | (Image) Joint Photographic Experts Group Image |
JPG | (Image) Joint Photographic Experts Group Image |
ODT | (Text) Open Document Text File Format |
PCX | (Image) Picture Exchange File |
(Text) Portable Document Format | |
PNG | (Image) Portable Network Graphic |
PPT | Microsoft Power Point Presentation file |
RAS | (Image) SunOS Raster Graphic |
RTF | (Text) Rich Text Format |
TIF | (Image) Tagged Image Filet Format |
TIFF | (Image) Tagged Image Filet Format |
TXT | (Text) Standard Text Document |
XLS | (Spreadsheet) Microsoft Excel Binary File (Legacy) |
XLSX | (Spreadsheet) Microsoft Excel Binary File |
XLT | (Spreadsheet) Microsoft Excel Template File |
Correct PDF Digital Signature
If you are familiar with working with digital signatures, a simple workaround is to remove the digital signature(s) and instead insert a signature image in the PDF on the appropriate line. Otherwise, proceed below for a detailed fix. This fix assumes a Windows environment. Select to download Adobe Reader.
Open the PDF file in Adobe Reader or Acrobat.
From the menu, select Edit > Preferences.
From the left-hand menu, select Signatures.
Under Identities & Trusted Certificates, select More. The Digital ID and Trusted Certificate Settings pop-up will open.
Select Add ID.
Select A new digital ID I want to create now, then select Next.
Select Windows Certificate Store, then select Next.
Enter your identity information, then select Finish.
Close the Digital ID and Trusted Certificate Settings window.
In the Preferences window, select OK.
Save PDF file to apply changes.
Add the attachment to your fax and send.
Note:
It may take some extra time to prepare and send the fax, especially if the attachment is large.
Cause
One or more of the following is likely to be the case:
The attached file is not in a supported format. PDF is often the most reliable, so it is suggested that document attachments be converted to PDF before attempting fax. See supported attachment file types below.
The PDF file attachment may contain a digital signature that may not have a trusted valid certification, which can also create the issue.
Note that 8x8 Work faxing also has the current limitations:
Total fax size sent cannot be greater than 19 MB.
Maximum of 5 files per fax.
Maximum page count of fax attachment in fax email notification is 20 pages.
Internet fax notification with attachments are only available with faxes up to 20 pages (inbound only).
Any fax exceeding 20 pages can still be downloaded from 8x8 Work for Desktop or Web.
Must use 11 digits (1 + 10-digit phone number) for sending outbound fax. Not doing so may result in a Number is Incomplete error.