RFC 2880 (rfc2880) - Page 1 of 37


Internet Fax T



Alternative Format: Original Text Document



Network Working Group                                        L. McIntyre
Request for Comments: 2880                             Xerox Corporation
Category: Informational                                         G. Klyne
                                                    Content Technologies
                                                             August 2000


                   Internet Fax T.30 Feature Mapping

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2000).  All Rights Reserved.

Abstract

   This document describes how to map Group 3 fax capability
   identification bits, described in ITU T.30 [6], into the Internet fax
   feature schema described in "Content feature schema for Internet fax"
   [4].

   This is a companion to the fax feature schema document [4], which
   itself defines a profile of the media feature registration mechanisms
   [1,2,3], for use in performing capability identification between
   extended Internet fax systems [5].

Table of Contents

   1. Introduction .............................................3
      1.1 Organization of this document ........................3
      1.2 Terminology and document conventions .................3
      1.3 Discussion of this document ..........................4
   2. Combining feature tags ...................................4
      2.1 Relationship to Group 3 fax ..........................5
      2.2 Feature set descriptions .............................5
      2.3 Examples .............................................5
        2.3.1 Data resource example ............................6
        2.3.2 Recipient capabilities example ...................6
   3. Survey of media-related T.30 capability bits .............6
      3.1 DIS/DTC bit 15 (resolution) ..........................6
      3.2 DIS/DTC bit 16 (MR coding) ...........................7
      3.3 DIS/DTC bits 17,18 (width) ...........................7
      3.4 DIS/DTC bits 19,20 (length) ..........................7



McIntyre & Klyne             Informational