The Fax-over-IP Interoperability Task Group has published Version 1.0 of its official Problem Statement, a document that details the various interoperability issues that currently plague FoIP services. This important document is available for download HERE.
The FoIP Task Group has developed a task group charter, which you can view HERE.
The FoIP Task Group evolved out of a special Fax-over-IP Interoperability Workshop in November, 2008 hosted by the SIP Forum and sponsored by Dialogic Corporation, that brought together researchers, engineers, and service providers to exchange ideas, share experiences, and propose approaches to address FoIP problems.
To view task group documents and other related materials, please visit the FoIP Task Group document repository HERE.