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Versions: 00 01                                                         
      Internet Draft                                        Glenn Parsons
      Expires in six months                               Nortel Networks
     
      Document: <draft-ema-vpim-address-01.txt>            March 10, 2000
     
     
     
                               VPIM Addressing
     
                       <draft-ema-vpim-address-01.txt>
     
     
     
      Status of this Memo
     
      This document is an Internet-Draft and is in full conformance with
      all provisions of Section 10 of RFC2026.
     
      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 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 a "work in progress".
     
      The list of current Internet-Drafts can be accessed at
         http://www.ietf.org/ietf/1id-abstracts.txt
     
      The list of Internet-Draft Shadow Directories can be accessed at
      http://www.ietf.org/shadow.html
     
     
      Copyright Notice
     
      Copyright (C) The Internet Society (2000).  All Rights Reserved.
     
     
      Overview
     
      This document lists the various VPIM email addresses that are
      currently in common use and defines several new address formats for
      special case usage. This draft is a part of the charter of the IETF
      VPIM BOF/WG.
     
      The VPIM WG home page is:  http://www.ema.org/vpim
     
     
     
     
     
     
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     Internet Draft             VPIM Addressing          March 10, 2000
     
      Table of Contents
     
      1. Abstract
      2. Introduction
      3. VPIM v2 Addressing
      4. VPIM v3 Addressing
          4.1 VPIM v3 Submission LHS
                4.1.1 The VPIM Address
                4.1.2 The Voice Address
                4.1.3 The AMIS Address
                4.1.4 The Fax Address
          4.2 VPIM v3 Submission Addresses
                4.2.1 The vpim-email
                4.2.2 The voice-email
                4.2.3 The amis-email
                4.2.4 The fax-email
      5. References
      6. Security Considerations
      7. Author's Address
      8. Full Copyright Statement
      9. Appendix A: IANA Registration form for new value of GSTN
                address service-selector "VPIM"
      10. Appendix A: IANA Registration form for new value of GSTN
                address service-selector "VOICE"
      11. Appendix A: IANA Registration form for new value of GSTN
                address service-selector "AMIS"
      12. Appendix D: IANA Registration form for new value of GSTN
                address qualit-type1 keyword and value "SYSNUM"
     
     
     
      1.  Abstract
     
      This document lists the various VPIM email addresses that are
      currently in common use and defines several new address formats for
      special case usage.
     
     
      2.  Introduction
     
      [VPIM2] does not place any restrictions on the email address format.
      However, it does suggest to use a numeric LHS since many legacy
      voice mail systems only use digits to identify mailboxes.  Further,
      it suggests a structure to handle private, international and
      extensions.  The private format has become deployed in most existing
      VPIM v2 systems, further some systems will only accept messages from
      addresses with a numeric LHS.
     
      [VPIM3] does not describe addressing at all.  The LHS format is
      left to the discretion of the mailbox owner.  However, it is
      useful in some cases (like submission or tunneling) to specify a
     
     
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     Internet Draft             VPIM Addressing          March 10, 2000
     
      LHS format.  A format based on GSTN Addressing [GSTN] is
      presented.
     
     
      3. VPIM v2 Addressing
     
      RFC 822 addresses are based on the domain name system.  This
      naming system has two components: the local part, used for
      username or mailbox identification; and the host part, used for
      global machine identification.
      The local part of the email address shall be a US-ASCII string
      uniquely identifying a mailbox on a destination system.  For
      voice messaging, the local part is a printable string containing
      the mailbox ID of the originator or recipient.  While alpha
      characters and long mailbox identifiers are permitted, most voice
      mail networks rely on numeric mailbox identifiers to retain
      compatibility with the limited 10 digit telephone keypad.  As a
      result, many voice messaging systems may only be able to handle a
      numeric local part.  The reception of alphanumeric local parts on
      these systems may result in:  the address being mapped to some
      locally unique (but confusing to the recipient) number, the
      address being deleted (but still delivered), or in the worst case
      the entire message being rejected.  Additionally, it may be
      difficult to create messages on these systems with an
      alphanumeric local part without complex key sequences or some
      form of directory lookup.
     
      In the absence of a global directory, specification of the local
      part is expected to conform to international or private telephone
      numbering plans.  It is likely that private numbering plans will
      prevail and these are left for local definition.  However, it is
      recommended that public telephone numbers be noted according to
      the international numbering plan described in [E.164]. The
      indication that the local part is a public telephone number is
      given by a preceding `+' (the `+' would not be entered from a
      telephone keypad, it is added by the system as a flag).  Since
      the primary information in the numeric scheme is contained by the
      digits, other character separators (e.g. `-') may be ignored
      (i.e. to allow parsing of the numeric local mailbox) or may be
      used to recognize distinct portions of the telephone number (e.g.
      country code).  The specification of the local part of a VPIM
      address can be split into the four groups described below:
     
      1) mailbox number
         - for use as a private numbering plan (any number of digits)
         - e.g.  2722@lucent.com
      2) mailbox number+extension
         - for use as a private numbering plan with extensions
           any number of digits, use of `+' as separator
         - e.g.  2722+111@lucent.com
      3) +international number
         - for international telephone numbers conforming to E.164
     
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     Internet Draft             VPIM Addressing          March 10, 2000
     
           maximum of 15 digits
         - e.g.  +16137637582@nortelnetworks.com
      4) +international number+extension
         - for international telephone numbers conforming to E.164
           maximum of 15 digits, with an extension (e.g. behind a
           PBX) that has a maximum of 15 digits.
         - e.g.  +17035245550+230@ema.org
     
      Deployed VPIM v2 systems typically support the first group, that is
      mailbox number on the LHS.  Note that in many case the mailbox is
      simply the local number (e.g., in North America the 10-digit NANP
      number is used).
     
     
      4.  VPIM v3 Addressing
     
      VPIM Version 3 places no restrictions on the form of the Internet
      address. VPIM Version 3 systems must be capable of receiving an
      arbitrary email address and generating a reply to that address.  No
      inferences about the structure of the local part (LHS) should be
      necessary.
     
      Recipients email addresses must be created in a form compatible with
      the recipients system and consistent with the address entry
      capabilities of a telephone user interface.
     
     
      4.1.1  VPIM v3 Submission LHS
     
      Limited capability voice mail machines may send messages by default
      to an external message submission gateway.  These gateways will
      convert the unresolved telephone number of the recipient into a
      legitimate email address.  Messages requiring address resolution
      must be sent to a submission system which will convert the submitted
      address into the route-able email address.
     
      Additionally, limited capability email systems may send messages to
      a VPIM onramp system indicated on the RHS. The LHS would indicate
      that the message is to be sent as a VPIM message to the telephone
      number indicated. In this case, address and message translation is
      performed by the gateway.
     
      Telephone numbers sent in a VPIM Version 3 submission mode MUST be
      sent in one of the following forms.
     
      This is based on the format defined in [PSTN-ADDR].
     
      The VPIM address
      For voice messages that are intended to be sent as VPIM messages the
      service-selector element is defined to be
     
            vpim-service-selector = "VPIM"
     
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         The resultant vpim-address and vpim-mbox are formally
     
            vpim-address = vpim-mbox
                          [ pstn-recipient ]
     
            vpim-mbox = [ "VPIM=" ] ( global-phone / local-phone )
                        [ sub-addr-spec  ext-addr-spec ]
     
            ext-addr-spec = [ ext-sep sub-addr ]
            ext-sep = ( "/EXT=" / "+" )
                      ; note that "/EXT=" is case INSENSITIVE
                      ; "+" is used for compatibility with current
                      ; VPIM addressing
     
         For clarity, here is an example of a very simple vpim-mbox:
     
            VPIM=6137637582
     
     
      4.1.2  The Voice address
     
      For voice messages that are intended to be sent as a voice
      outdialing at the destination system, the service-selector element
      is defined to be
     
            voice-service-selector = "VOICE"
     
         The resultant voice-address and voice-mbox are formally
     
            voice-address = voice-mbox
                          [ pstn-recipient ]
     
            voice-mbox = "VOICE=" ( global-phone / local-phone )
                       [ sub-addr spec ] [post
                                 -            -sep post-dial]
     
         For more clarity, here is an example of a very simple voice-mbox:
     
            VOICE=+3940226338
     
     
      4.1.3  The AMIS address
     
      For voice messages that are intended to be sent as AMIS (Audio
      Messaging Interchange Specification) voice mail messages, the
      service-selector element is defined to be
     
            amis-service-selector = "AMIS"
     
         The resultant amis-address and amis-mbox are formally
     
            amis-address = amis-mbox
     
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     Internet Draft             VPIM Addressing          March 10, 2000
     
     
            amis-mbox = "AMIS=" amis-mailbox
                        [ "/SYSNUM=" amis-sysnum ]
                        ; note that "/SYSNUM=" is case INSENSITIVE
     
            amis-mailbox = ( amis-a / amis-d )
     
            amis-a = amis-a-number
     
            amis-d = [ amis-mailbox-numberplan ][ "+" ] amis-mailbox-id
                        [ "+" ] [ amis-mailbox-extension ]
                        ; The "+" separators are used to be compatible
                        ; the X.400 AMIS-D mailbox definition --
                        ; if more than one element is present, both
                        ; "+" must appear.  Note also that the total
                        ; length of this field is restricted to 32
                        ; characters by AMIS-D.
     
            amis-mailbox-numberplan = 1*VCHAR
     
            amis-mailbox-id = 1*16(VCHAR)
     
            amis-mailbox-extension = 1*VCHAR
     
            amis-sysnum =  amis-a-number
     
            amis-a-number = ( amis-PSTN-number / amis-private-number )
     
            amis-PSTN-number = int-country-code "+"
                               area-code "+"
                               local-number "+"
                               ; This is in agreement with ITU E.164 [12]
                               ; specification and per [AMISA] - the
                               ; maximum length is 15 numeric digits.
                               ; The "+" separators are used to be
                               ; compatible with the X.400 AMIS-D
                               ; mailbox definition and replace the '#'
                               ; separators of AMIS-A
     
            amis-private-number = "0++" local-number "+"
                               ; [AMISA] indicates that maximum permitted
                               ; length of the private number is 14
                               ; digits
     
            int-country-code = 1*4(DIGIT)
     
            area-code = 1*(DIGIT)
     
            local-number = 1*(DIGIT)
     
     
     
     
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     Internet Draft             VPIM Addressing          March 10, 2000
     
         For more clarity, here is an example of a simple AMIS-A amis-
         mbox:
     
            AMIS=+1/401+3278144+/SYSNUM=1+401+3279542+
     
     
      4.1.4 The fax address
     
      As defined in [FAX-ADDR]
     
     
      4.2 VPIM v3 Submission Addresses
     
      Based on RFC2303, these are the resultant email addresses for the
      LHS presented above.  VPIM v3 systems that support submission MUST
      accept, translate (if necessary), and forward messages sent to these
      addresses.
     
     
      4.2.1 The vpim-email
     
      The vpim-email element is a specific version of pstn-email for VPIM
      over the Internet e-mail transport system, where the service-
      selector distinction is set to "VPIM".
     
                vpim-email =  ["/"] vpim-address ["/"] "@" mta-I-pstn
     
      In this case the mta-I-pstn will usually point to a VPIM capable
      messaging system where the attached message will be delivered
      properly.
     
     
      4.2.2 The voice-email
     
      The voice-email element is a specific version of pstn-email for the
      voice outdialing over the Internet e-mail transport system, where
      the service-selector distinction is set to "VOICE".
     
                voice-email =  ["/"] voice-address ["/"] "@" mta-I-pstn
     
      In this case the mta-I-pstn will usually point to a device that will
      perform an outdial, that is for example, make a telephone call to
      the specified number and play a voice attachment.
     
     
      4.2.3 The amis-email
     
      The amis-email element is a specific version of pstn-email for the
      AMIS over the Internet e-mail transport system, where the service-
      selector distinction is set to "AMIS".
     
                amis-email =  ["/"] amis-address ["/"] "@" mta-I-pstn
     
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     Internet Draft             VPIM Addressing          March 10, 2000
     
     
      In this case the mta-I-pstn will usually point to a device that acts
      as a gateway to an AMIS network where the attached voice message
      will be delivered properly.
     
     
      4.2.4 The fax-email
     
      As defined in [FAX-ADDR]
     
     
      5. References
     
      [AMIS-A] Audio Messaging Interchange Specifications (AMIS) - Analog
      Protocol Version 1, Issue 2, February 1992.
     
      [AMIS-D] Audio Messaging Interchange Specifications (AMIS) - Digital
      Protocol Version 1, Issue 3 August 1993.
     
      [E164] CCITT Recommendation E.164 (1991), Telephone Network and ISDN
      Operation, Numbering, Routing and  Mobile Service - Numbering Plan
      for the ISDN Era.
     
      [GSTN] Allocchio, C., "GSTN Address Element Extensions in e-mail
      Services", <draft-ietf-fax-fulladdr-06.txt>, Work In Progress
     
      [RFC822] Crocker, D., "Standard for the Format of ARPA Internet Text
      Messages", STD 11, RFC 822, UDEL, August 1982.
     
      [VPIM2] Vaudreuil, Greg, Parsons, Glenn, "Voice Profile for Internet
      Mail, Version 2", RFC 2421, September 1998.
     
      [VPIM3] Vaudreuil, Greg, Parsons, Glenn, "Voice Profile for Internet
      Mail, Version 3", <draft-ema-vpimv3-00.txt>, Work in progress.
     
      [FAX-ADDR] Allocchio, C., "Minimal FAX address format in Internet
      Mail", RFC 2304, March 1998.
     
      [PSTN-ADDR] Allocchio, C., "Minimal PSTN address format in Internet
      Mail", RFC 2303, March 1998.
     
     
      6. Security Considerations
     
      None beyond those already identified in [VPIM2] and [VPIM3].
     
     
     
     
     
     
     
     
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     Internet Draft             VPIM Addressing          March 10, 2000
     
      7. Author's Address
     
              Glenn W. Parsons
              Nortel Networks
              P.O. Box 3511, Station C
              Ottawa, ON K1Y 4H7
              Phone: +1-613-763-7582
              Fax  : +1-613-763-4461
              Email: gparsons@nortelnetworks.com
     
     
      8. Full Copyright Statement
     
      "Copyright (C) The Internet Society (2000).  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."
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     Internet Draft             VPIM Addressing          March 10, 2000
     
      9.  Appendix A: IANA Registration form for new value of GSTN
                      address service-selector "VPIM"
     
         To: IANA@isi.edu
     
         Subject: Registration of new values for the GSTN address
                  service-selector specifier "VPIM"
     
         service-selector name:
     
            VPIM
     
         Description of Use:
     
            VPIM - specify that the GSTN address refers to a voice
            mailbox that is intended to accept a VPIM message.
     
            For a complete description refer to "VPIM Addressing",
            draft-ema-vpim-address-01.txt.
     
         Security Considerations:
     
            See the Security Consideration section of "VPIM
            Addressing", draft-ema-vpim-address-01.txt.
     
         Person & email address to contact for further information:
     
            Glenn W. Parsons
            Nortel Networks
            P.0. Box 3511 Station C
            Ottawa, On  K1Y 4H7
            Canada
            Phone: +1-613-763-7582
            Fax  : +1-613-4461
            Email: gparsons@nortelnetworks.com
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     Internet Draft             VPIM Addressing          March 10, 2000
     
        10.  Appendix B: IANA Registration form for new value of GSTN
                         address service-selector "VOICE"
     
         To: IANA@isi.edu
     
         Subject: Registration of new values for the GSTN address
                  service-selector specifier "VOICE"
     
         service-selector name:
     
            VOICE
     
         Description of Use:
     
            VOICE - specify that the GSTN address refers to a voice
            device that is intended to be sent a voice message via an
            'outdialing'.
     
            For a complete description refer to "VPIM Addressing",
            draft-ema-vpim-address-01.txt.
     
         Security Considerations:
     
            See the Security Consideration section of "VPIM
            Addressing", draft-ema-vpim-address-01.txt.
     
         Person & email address to contact for further information:
     
            Glenn W. Parsons
            Nortel Networks
            P.0. Box 3511 Station C
            Ottawa, On  K1Y 4H7
            Canada
            Phone: +1-613-763-7582
            Fax  : +1-613-4461
            Email: gparsons@nortelnetworks.com
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     Internet Draft             VPIM Addressing          March 10, 2000
     
        11.  Appendix C: IANA Registration form for new value of GSTN
                         address service-selector "AMIS"
     
         To: IANA@isi.edu
     
         Subject: Registration of new values for the GSTN address
                  service-selector specifier "AMIS"
     
         service-selector name:
     
            AMIS
     
         Description of Use:
     
            AMIS - specify that the GSTN address refers to a voice
            mailbox that is intended to be sent an AMIS (Audio
            Messaging Interchange Specification) voice mail message.
     
            For a complete description refer to "VPIM Addressing",
            draft-ema-vpim-address-01.txt.
     
         Security Considerations:
     
            See the Security Consideration section of "VPIM
            Addressing", draft-ema-vpim-address-01.txt.
     
         Person & email address to contact for further information:
     
            Glenn W. Parsons
            Nortel Networks
            P.0. Box 3511 Station C
            Ottawa, On  K1Y 4H7
            Canada
            Phone: +1-613-763-7582
            Fax  : +1-613-4461
            Email: gparsons@nortelnetworks.com
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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      12.  Appendix D: IANA Registration form for new value of GSTN
                        address qualit-type1 keyword and value "SYSNUM"
     
         To: IANA@isi.edu
     
         Subject: Registration of new values for the GSTN address
                  qualif-type1 element "sysnum"
     
         qualif-type1 "keyword" name:
     
            sysnum
     
         qualif-type1 "value" ABNF definition:
     
            sysnum = 1*(DIGIT / "+")
     
         Description of Use:
     
            sysnum is used to specify the numeric optional AMIS sub-
            address element as described in "VPIM Addressing", draft-
            ema-vpim-address-01.txt.
     
         Use Restriction:
     
            The use of "SYSNUM" is restricted to "AMIS" service-
            selector, is it has no meaning outside the AMIS service.
     
         Security Considerations:
     
            See the Security Consideration section of "VPIM
            Addressing", draft-ema-vpim-address-01.txt.
     
         Person & email address to contact for further information:
     
            Glenn W. Parsons
            Nortel Networks
            P.0. Box 3511 Station C
            Ottawa, On  K1Y 4H7
            Canada
            Phone: +1-613-763-7582
            Fax  : +1-613-4461
            Email: gparsons@nortelnetworks.com
     
     
     
     
     
     
     
     
     
     
     
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