Interoperability between VPIMv2 and VPIMv3 Messaging Systems Status of this memo This document is an Internet-Draft. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet Drafts as reference material or to cite them other than as ``work in progress.'' To view the entire list of current Internet-Drafts, please check the "1id-abstracts.txt" listing contained in the Internet-Drafts Shadow Directories on ftp.is.co.za (Africa), ftp.nordu.net (Northern Europe), ftp.nis.garr.it (Southern Europe), munnari.oz.au (Pacific Rim), ftp.ietf.org (US East Coast), or ftp.isi.edu (US West Coast). This draft is being discussed by the Electronic Messaging Association VPIM work group. To subscribe to the mailing list, send a message to EMA Listserv Requests [listserv@listmail.ema.org] with the line "subscribe VPIM-L" in the body of the message. Table of contents 1. Introduction 2. Interoperability of VPIM3 to VPIM2 Systems 3. Interoperability of VPIM2 to VPIM3 Systems 3. Acknowledgements 4. Copyright 5. Author's address 6. References Abstract This document describes the interaction between systems implementing the VPIM3 specification and systems implementing the VPIM2 specification. 1. Introduction Until recently, voice mail and call answering services were implemented as stand-alone proprietary systems. Today, standards such as the Voice Profile for Internet Mail (VPIM) enable interoperability between such systems over the Internet. VPIM [VPIM1] describes a messaging profile that standardizes the exchange of voice mail over an IP messaging network using ESMTP [ESMTP] and MIME [MIME1]. VPIM Version 2 [VPIM2] provides interoperability between voice messaging services only. VPIM Version 3 [VPIM3] supports the needs of unified messaging systems and desktop applications, especially desktop email client applications. As defined in The Goals for VPIM Version 3 [VPIMG], overall interoperability requires interoperability for all of the VPIM2 elements. Critical body parts must be preserved, essential information must be provided in a form that is accessible by the users, status codes must be understood, and operations that are standard for each system should be supported. 2. Interoperability of VPIM3 to VPIM2 Systems A VPIM3 server SHOULD conform with the receive requirements of VPIM2. 3. Interoperability of VPIM3 to VPIM2 Systems Upon receipt of a negative delivery status notification from a VPIM2 server, the VPIM3 sender SHOULD conform to the send requirements of VPIM2. Subsequent messages directed toward the VPIM2 domain SHOULD conform to the send requirements of VPIM2. 4. Acknowledgements The author gratefully acknowledges the input and feedback provided by the members of the VPIM version 3 work group including Bernard Elliot, Holly Grabowski, Laile Di Silvestro, Glen Parsons, and Greg Vaudreuil. 5. Copyright Copyright (C) The Internet Society, 1997. All Rights Reserved. This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. However, this document itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English. The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assigns. This document and the information contained herein is provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE." 5. Author's address Lance Mansfield Active Voice Corporation 2901 Third Ave. Seattle, WA 98121 Lmansfield@activevoice.com 6. References [VPIM1] Vaudreuil, Greg, "Voice Profile for Internet Mail", RFC 1911, Feb 1996. [VPIM2] Vaudreuil, Greg, Parsons, Glen, "Voice Profile for Internet Mail, Version 2", RFC 2421, September 1998. [VPIM3] Vaudreuil, Greg, "Voice Profile for Internet Mail, Version 3", ",Work In Progress, , December 1998. [VPIMG] Di Silvestro, Liale, "Goals for Voice Profile for Internet Messaging, Version 3", Work In Progress, , January 1999.