The Interfax Fax Web Service is a commercial subscription-based service which enables transmission and reception of fax messages without the need to install any hardware or software. The original document to be transmitted may be of various formats, such as HTML, Microsoft Word, PDF etc. Received faxes are in TIF format.
As an extension to to sending capabilities, the Interfax Fax Web Service provides facilities for retrieving status information regarding fax messages sent through it.
It supports both secure and non-secure communication between the custom-programmed application and the Interfax server.
For advanced uses, the optional Interfax Admin Web Service allows user preference management and addition or removal of users and services.