If you are a developer, you can contribute to the AvantFAX codebase through bug fixes, feature enhancements, and new applications. Contributions are typically made as patches against the current release, and then e-mailed to the author ().
Before any patches can be merged with AvantFAX, the author of the contribution must submit a copyright disclaimer which gives iFAX Solutions (AvantFAX's copyright holder) unlimited rights to use the contribution. The disclaimer document is found below. After being filled out and signed, the document should be faxed (or emailed) to iFAX Solutions, Inc.
Contact information is available at http://www.ifax.com.