Network Working Group G. Vaudreuil Request for Comments: 3803 Lucent Technologies Obsoletes: 2424 G. Parsons Category: Standards Track Nortel Networks June 2004 Content Duration MIME Header Definition 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 (2004).
AbstractThis document describes the MIME header Content-Duration that is intended for use with any time varying media content (typically audio/* or video/*). RFC 2424. The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119 [REQ].
VPIM2]. All VPIM Messages MUST contain this sub-type to carry the audio of a voice message. It may be useful in some instances (e.g., viewing on a simple MIME or non-MIME desktop) to have the time duration of the voice message available without having to open the audio content.
[MIME2] Gellens, R., "The Text/Plain Format Parameter", RFC 2646, August 1999. [VPIM2R2] Vaudreuil, G., and G. Parsons, "Voice Profile for Internet Mail - version 2 (VPIMv2)", RFC 3801, June 2004. [REQ] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [DUR] Parsons, G. and G. Vaudreuil, "Content Duration MIME Header Definition", RFC 2424, September 1998. [VPIM2] Vaudreuil, G. and G. Parsons, "Voice Profile for Internet Mail - version 2", RFC 2421, September 1998. RFC 2424 have been made to this document.
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