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IETF RFC 6913 – Indicating Fax over IP Capability in SIP

This RFC document, entitled “Indicating Fax over IP Capability in the Session Initiation Protocol (SIP)”, authored by David Hanes, Gonzalo Salgueiro, and Kevin Fleming, defines and registers with IANA the new “fax” media feature tag for use with the Session Initiation Protocol (SIP). Currently, fax calls are indistinguishable from voice calls at call initiation. Consequently,…

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i3 Forum Testing Report

This is a presentation that was given by Jerzy Soldrowski (Telecom Poland) at the i3 Forum Technical Stream meeting in Paris, France, 25–26 September, 2012.

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IETF ID – Indicating Fax over IP Capability in the Session Initiation Protocol (SIP)

This new IETF Internet Draft (ID), entitled “Indicating Fax over IP Capability in the Session Initiation Protocol (SIP)– draft-hanes-dispatch-fax-capability-02 — defines and registers with IANA the new ‘fax’ media feature tag for use with SIP. Currently, fax calls are indistinguishable from voice at call setup. Consequently, fax calls can be routed to SIP user agents…

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ITU-T T.38 SIP/SDP Negotiation Improvements

This document proposes changes to ITU-T Recommendation T.38 as a means to improve interoperability between implementations and provide improved clarity and understanding among implementers of the recommendation. The proposed changes represent a year of analysis and discussion by the SIP Forum’s Fax over IP working group. The changes proposed include additional session parameters to be…

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T.38 SIP-SDP Subgroup Problem Statement

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…

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IETF – ID Version of Fax-over-IP Problem Statement

This memo is published and submitted to the IETF for informational purposes to document the issues identified by the SIP Forum with respect to the transmission of facsimile signaling messages and fax page data over Internet Protocol (IP) networks. Further, it is the intent of this memo to alert the IETF to the formation of…

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Response to received Liaison on Interoperability issues with V.152 and T.38 gateways

This document contains the ETSI TISPAN WG3 response to an ITU-T SG16 prior request on inter-operability aspects and considerations of equipment supporting ITU-T V.152, as well as inputs on ITU-T T.38. This document also provides SG16 comments to the two ETSI TISPAN WG3 Liaison Statements. There will be another meeting cycle to consider the changes.…

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