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fax-charter.txt
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Internet Fax (fax)
------------------
Charter
Last Modified: 27-Oct-97
Current Status: Active Working Group
Chair(s):
Dave Crocker <dcrocker@brandenburg.com>
James Rafferty <71043.1114@compuserve.com>
Applications Area Director(s):
Keith Moore <moore+iesg@cs.utk.edu>
Harald Alvestrand <Harald.T.Alvestrand@uninett.no>
Applications Area Advisor:
Harald Alvestrand <Harald.T.Alvestrand@uninett.no>
Mailing Lists:
General Discussion:ietf-fax@imc.org
To Subscribe: ietf-fax-request@imc.org
In Body: In Body: subscribe
Archive: http://www.imc.org/ietf-fax/
Description of Working Group:
Facsimile (fax) serves as a reliable, inexpensive global communications
service. As the Internet becomes pervasive, integrating fax and
Internet services is appealing in terms of cost savings and
opportunities for functional enhancements. This working group will
pursue a review and specification for enabling standardized
messaging-based fax over the Internet. It will also develop informal
requirements for fax<->Internet gateways as a first step toward
devising standards for session-based fax over the Internet. The
messaging-based (via e-mail) service will be specified first, since it
should produce useful results for the least additional technical
effort.
Facsimile/Internet integration can be considered in terms of two user
service models, in order of increasing technical difficulty:
o Messaging (as with electronic mail) having high latency
o Session-based, for observed delivery, with or without
capabilities negotiation
Within these models, a real-time (telephone network replacement) based
service is considered to be a subset of the session-based model.
For interconnecting fax services over the dial-up telephone network and
carriage of facsimile message data over the Internet, two types of
interface systems are required:
o Internet/Dial-up Fax gateway, moving data from the Internet to
classic or Internet-aware dial-up fax products and services
o Dial-up/Internet Fax gateway, moving data from classic or
Internet-aware dial-up fax products and services to the Internet
The dominant fax communications mode in use today is a session-based
connection operating in real-timeover the dial up telephone network;
hence an Internet-based direct replacement service would potentially
save significant long- distance telephone charges. However, it is
believed that from a technical standpoint this service is the most
difficult task to produce over the Internet, whereas an messaging-based
service is likely to be the simplest. In addition, it is anticipated
that the two services will ultimately utilize at least some common
technical components. Therefore, this working group will initially
review and specificy messaging-based fax over the Internet, using as
much existing practice as possible.
The working group will take the following steps to specify a core
fax-related messaging service over the Internet:
Terminology: Develop a shared set of terminology and definitions,
to ensure a common framework for participants having differing
backgrounds in Internet protocols and facsimile
telecommunication.
Data Representations: Review existing facsimile- related Internet
data specifications and accept, modify, replace or augment them,
with particular attention to their encapsulation, such as via
MIME.
Addressing and transport: Specify the mechanisms for addressing
and receipt notification for facsimile data carried via Internet
mail.
For session-oriented operation, the following specification will be
created, as a basis for further work:
Operational constraints: Detail the operational constraints for
achieving session-oriented use of messaging, tailored for timely
delivery with the sender waiting for delivery confirmation.
Existing protocols and data specifications will be used as much as
possible.
The working group will take note of quality of service
issues.
The working group will coordinate its activities with other
facsimile- related standards bodies.
Goals and Milestones:
Jan 97 Submit Internet-Draft of data specifications
Jan 97 Submit Internet-Draft of terminology document
Feb 97 Submit Internet-Draft of messaging-related specification
Feb 97 Submit Internet-Draft of operational constraints document
Apr 97 Submit terminology document to IESG for publication
Apr 97 Submit data specifications to IESG for consideration as a
standards track document
Jun 97 Submit messaging-related specification to IESG for
consideration as a standards track document
Jun 97 Submit operational constraints document to IESG for publication
as an Informational document
Internet-Drafts:
Posted Revised I-D Title <Filename>
------ ------- ------------------------------------------
Feb 97 Sep 97 <draft-ietf-fax-tiff-04.txt>
Tag Image File Format (TIFF) - Application F
Mar 97 Oct 97 <draft-ietf-fax-tiffplus-02.txt>
File Format for Internet Fax
Jul 97 Sep 97 <draft-ietf-fax-tiff-reg-02.txt>
Tag Image File Format (TIFF) - image/tiff MIME Sub-type
Registration
Aug 97 New <draft-ietf-fax-smtp-session-00.txt>
SMTP Service Extension for Immediate Delivery
Sep 97 Oct 97 <draft-ietf-fax-addressing-01.txt>
PSTN and fax address format in e-mail services v3.4
Sep 97 New <draft-ietf-fax-tiff-f-reg-00.txt>
Tag Image File Format (TIFF) - image/tiff-f MIME
Sub-type Registration
Oct 97 New <draft-ietf-fax-itudc-00.txt>
PROCEDURES FOR THE TRANSFER OF FACSIMILE DATA VIA INTERNET MAIL
Request For Comments:
None to date.