Anything related to developing with the InterFAX fax API.
InterFAX is a business-oriented internet fax service, enabling fax transmission and reception via email or API. Compliant with PCI-DSS Tier 1, HIPAA, ISO 27001, GDPR.
Developer docs are available at https://www.interfax.net/en/dev. Code samples are available on Github at https://github.com/interfax.