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Indication of Message Composition for Instant Messaging (RFC3994)

IP.com Disclosure Number: IPCOM000039276D
Original Publication Date: 2005-Jan-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 14 page(s) / 28K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

H. Schulzrinne: AUTHOR

Abstract

In instant messaging (IM) systems, it is useful to know during an IM conversation whether the other party is composing a message; e.g., typing or recording an audio message. This document defines a new status message content type and XML namespace that conveys information about a message being composed. The status message can indicate the composition of a message of any type, including text, voice, or video. The status messages are delivered to the instant messaging recipient in the same manner as the instant messages themselves.

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Network Working Group                                     H. Schulzrinne

Request for Comments: 3994                                   Columbia U.

Category: Standards Track                                   January 2005

        Indication of Message Composition for Instant Messaging

Status of This Memo

   This document specifies an Internet standards track protocol for the

   Internet community, and requests discussion and suggestions for

   improvements.  Please refer to the current edition of the "Internet

   Official Protocol Standards" (STD 1) for the standardization state

   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2005).

Abstract

   In instant messaging (IM) systems, it is useful to know during an IM

   conversation whether the other party is composing a message; e.g.,

   typing or recording an audio message.  This document defines a new

   status message content type and XML namespace that conveys

   information about a message being composed.  The status message can

   indicate the composition of a message of any type, including text,

   voice, or video.  The status messages are delivered to the instant

   messaging recipient in the same manner as the instant messages

   themselves.

Schulzrinne                 Standards Track                     [Page 1]

RFC 3994                      isComposing                   January 2005

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2

   2.  Terminology and Conventions  . . . . . . . . . . . . . . . . .  3

   3.  Description  . . . . . . . . . . . . . . . . . . . . . . . . .  3

       3.1.  Overview . . . . . . . . . . . . . . . . . . . . . . . .  3

       3.2.  Message Composer Behavior  . . . . . . . . . . . . . . .  4

       3.3.  Status Message Receiver Behavior . . . . . . . . . . . .  5

       3.4.  Message Content  . . . . . . . . . . . . . . . . . . . .  6

       3.5.  Additional Status Information  . . . . . . . . . . . . .  6

   4.  Using the Status Message . . . . . . . . . . . . . . . . . . .  7

   5.  Examples . . . . . . . . . . . . . . . . . . . . . . . . . . .  8

   6.  XML Document Format  . . . . . . . . . . . . . . . . . . . . .  8

       6.1.  XML Schema . . . . . . . . . . . . . . . . . . . . . . .  9

   7.  Security Considerations  . . . . . . . . . . . . . . . . . . .  9

   8.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 10

       8.1.  Content-Type Registration for

             'application/im-iscomposing+xml' . . . . . . . . . . . . 10

       8.2.  URN Sub-Namespace Registration for

         ...