RFC 2421 (rfc2421) - Page 2 of 56


Voice Profile for Internet Mail - version 2



Alternative Format: Original Text Document

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RFC 2421                        VPIM v2                   September 1998


Table of Contents

   1. ABSTRACT .........................................................3
   2. SCOPE ............................................................3
     2.1 Voice Messaging System Limitations ............................3
     2.2 Design Goals ..................................................4
   3. PROTOCOL RESTRICTIONS ............................................5
   4. VOICE MESSAGE INTERCHANGE FORMAT .................................6
     4.1 Message Addressing Formats ....................................6
     4.2 Message Header Fields .........................................9
     4.3 Voice Message Content Types ..................................15
     4.4 Other Message Content Types ..................................21
     4.5 Forwarded Messages ...........................................23
     4.6 Reply Messages ...............................................23
     4.7 Notification Messages ........................................24
   5. MESSAGE TRANSPORT PROTOCOL ......................................24
     5.1 ESMTP Commands ...............................................25
     5.2 ESMTP Keywords ...............................................27
     5.3 ESMTP Parameters - MAIL FROM .................................28
     5.4 ESMTP Parameters - RCPT TO ...................................29
     5.5 ESMTP - SMTP Downgrading .....................................29
   6. DIRECTORY ADDRESS RESOLUTION ....................................30
   7. IMAP ............................................................30
   8. MANAGEMENT PROTOCOLS ............................................30
     8.1 Network Management ...........................................31
   9. CONFORMANCE REQUIREMENTS ........................................31
   10. SECURITY CONSIDERATIONS ........................................32
     10.1 General Directive ...........................................32
     10.2 Threats and Problems ........................................32
     10.3 Security Techniques .........................................33
   11. REFERENCES .....................................................33
   12. ACKNOWLEDGMENTS ................................................36
   13. AUTHORS' ADDRESSES .............................................36
   14. APPENDIX A - VPIM REQUIREMENTS SUMMARY .........................37
   15. APPENDIX B - EXAMPLE VOICE MESSAGES ............................45
   16. APPENDIX C - EXAMPLE ERROR VOICE PROCESSING ERROR CODES ........50
   17. APPENDIX D - EXAMPLE VOICE PROCESSING DISPOSITION TYPES ........51
   18. APPENDIX E - IANA REGISTRATIONS ................................52
     18.1 vCard EMAIL Type Definition for VPIM ........................52
     18.2 Voice Content-Disposition Parameter Definition ..............52
   19. APPENDIX F - CHANGE HISTORY: RFC 1911 TO THIS DOCUMENT .........54
   20. FULL COPYRIGHT NOTICE ..........................................56









Vaudreuil & Parsons         Standards Track


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