This document is the official problem statement related to the work of the SIP Forum FoIP SIP-SDP subgroup. While the T.38 protocol, approved by the ITU-T in 1998, was designed to allow fax machines and computer-based fax to carry forward in a transitioning communications infrastructure of both IP- and TDM-based telephony, in 2009 there are…

This document, contributed by FoIP Task Group Chair Neil Weldon, Dialogic, provides a concise overview of the process currently underway in the task group relating to how the group is addressing the identified problems that have been described in the published problem statement.

This document is the ratified version 1.0 of the SIP Forum Fax-over-IP Interoperability Task Group Problem Statement.