VPIM Voice Message MIME Sub-type Registration (RFC2423)
Original Publication Date: 1998-Sep-01
Included in the Prior Art Database: 2019-Feb-11
Internet Society Requests For Comment (RFCs)
G. Vaudreuil: AUTHOR [+1]
This document describes the registration of the MIME sub-type multipart/voice-message for use with the Voice Profile for Internet Mail (VPIM). [STANDARDS-TRACK]
Network Working Group G. Vaudreuil Request for Comments: 2423 Lucent Technologies Obsoletes: 1911 G. Parsons Category: Standards Track Northern Telecom September 1998
VPIM Voice Message MIME Sub-type Registration
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 (C) The Internet Society (1998). All Rights Reserved.
This document describes the registration of the MIME sub-type multipart/voice-message for use with the Voice Profile for Internet Mail (VPIM). A full description of usage can be found in the VPIM v2 specification.
This document describes the registration of the MIME sub-type multipart/voice-message for use with the Voice Profile for Internet Mail (VPIM). A full description of usage can be found in the VPIM v2 specification [VPIM2]. This document revises an earlier sub-type registration in RFC 1911 [VPIM1].
2. VPIM Scope
The VPIM specification defines a restricted profile of the Internet multimedia messaging protocols for use between voice processing platforms. These platforms have historically been special-purpose computers and often do not have the same facilities normally associated with a traditional Internet Email-capable computer. As a result, VPIM also specifies additional functionality as it is needed. The profile is intended to specify the minimum common set of features to allow interworking between compliant systems.
Vaudreuil & Parsons Standards Track [Page 1]
RFC 2423 multipart/voice-message September 1998
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 [REQ].
3. Voice Message Interchange
The MIME sub-type multipart/voice-message is defined to hold specific media contents that are interchanged in messages between voice messaging systems described in [VPIM2]. Essentially, the sub-type provides a simple wrapper that easily identifies the entire content as being the components of a single voice message. The sub-type is identical in semantics and syntax to multipart/mixed, as defined in [MIME2]. As such, it may be safely interpreted as a multipart/mixed by systems that do not understand the sub-type (only the identification as a voice message would be lost).
This mechanism allows the insertion of an explanatory preamble (e.g. VPIM voice message attached) for recipients who read the message with pre-MIME software, since the preamble will be ignored by MIME- compliant software.
In addition to the MIME required boundary parameter, a version parameter is also required for this sub-type. This is to distinguish, this refin...