draft-ietf-vpim-address-02.txtVPIM Work Group Glenn Parsons Internet Draft Nortel Networks Document: <draft-ietf-vpim-address-02.txt> October 22, 2001 Category: Standards Track VPIM Addressing 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 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." 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. Abstract This document lists the various VPIM email address formats that are currently in common use and defines several new address formats for special case usage. Requirements are imposed on the formats of addresses used in VPIM submission mode. Copyright Statement Copyright (C) The Internet Society (2001). All Rights Reserved. Parsons [Page 1]
VPIM Addressing October 22, 2001 Table of Contents 1. Introduction......................................................3 2. Conventions used in this document.................................3 3. VPIM v2 Addressing................................................3 4. VPIM Addressing...................................................3 4.1 VPIM Submission LHS............................................4 4.2 VPIM Submission Addresses......................................6 5. Security Considerations...........................................7 6. IANA Considerations...............................................7 6.1: IANA Registration form for new value of GSTN address service-selector "VPIM".......................................7 6.2: IANA Registration form for new value of GSTN address service-selector "VOICE"......................................8 6.3: IANA Registration form for new value of GSTN address service-selector "AMIS".......................................9 6.4: IANA Registration form for new value of GSTN address qualif-type1 keyword and value "SYSNUM".......................9 6.5: IANA Registration form for new value of GSTN address qualif-type1 keyword and value "EXT".........................10 6.6: IANA Registration form for new value of GSTN address qualif-type1 keyword and value "DL"..........................11 7. References.......................................................12 8. Author's Addresses...............................................12 9. Full Copyright Statement.........................................13 Parsons Expires: 22/04/02 [Page 2]
VPIM Addressing October 22, 2001 1. Introduction This document lists the various VPIM email address formats that are currently in common use and defines several new address formats for special case usage. Requirements are imposed on the formats of addresses used in VPIM submission mode [VPIM2] does not place any restrictions on the email address format. However, it does recommend the use of a numeric LHS since many legacy voice mail systems only use digits to identify mailboxes. Further, it recommends 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. [IVM] 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 LHS format. A format based on GSTN addressing [GSTN] is presented. This document defines the various recipient (i.e., TO) addresses for VPIM and IVM messages. 2. Conventions used in this document 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. "LHS" as used in this document is to be interpreted as the left side of the "@" in an email address. It is defined as "local-part" in RFC-822. 3. VPIM v2 Addressing This is defined in section 4.1.1 of [VPIM2] & [VPIMV2R2]. Of the four groups of addresses defined, the mailbox number format is the most commonly used in VPIM v2 systems. Example: 6137637582@nortelnetworks.com 4. VPIM Addressing VPIM places no restrictions on the form of the Internet address. VPIM 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. The following sections use formal syntax compliant with RFC 2234, "Augmented BNF for Syntax Specifications: ABNF". Parsons Expires: 22/04/02 [Page 3]
VPIM Addressing October 22, 2001 4.1 VPIM 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 submission mode MUST be sent in one of the following forms. This is based on the format defined in [GSTN-ADDR] and extensions in [GSTN]. 4.1.1 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" 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 dl-addr-spec] dl-addr-spec = "/DL=" sub-addr ;note that "/DL=" is case INSENSITIVE ext-addr-spec = [ ext-sep sub-addr ] ext-sep = ( "/EXT=" / "+" ) ; note that "/EXT=" is case INSENSITIVE ; "+" is used for compatibility with current ; VPIM v2 addressing For clarity, here is an example of a very simple vpim-mbox: VPIM=6137637582 The extension syntax, that is a phone number followed by "/EXT=" defining the extension, would be used where the mailbox does not have a direct dial number associated with it (e.g., typically behind a non-ISDN PBX). For example: VPIM=7035255550/EXT=227 The distribution list syntax, that is a phone number followed by "/DL=" defining the list, would be used to refer to a distribution list associated with the phone number (with or without an extension). For example: Parsons Expires: 22/04/02 [Page 4]
VPIM Addressing October 22, 2001 VPIM=+14165977230/DL=93 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 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) Parsons Expires: 22/04/02 [Page 5]
VPIM Addressing October 22, 2001 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] ; specification and per [AMIS-A] - 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 "+" ; [AMIS-A] 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) 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 Fax addresses used in VPIM are formatted as defined in [FAX- ADDR],section 2. 4.2 VPIM Submission Addresses Based on [GSTN-ADDR], these are the resultant email addresses for the LHS presented above. VPIM and IVM 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. Parsons Expires: 22/04/02 [Page 6]
VPIM Addressing October 22, 2001 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 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 Fax email addresses used in VPIM are formatted as defined in [FAX- ADDR], section 4. 5. Security Considerations Most security considerations are already identified in [VPIM2] and [IVM]. An additional concern would be that the sender must trust and also be aware of the policies of the submission MTA to which the message is submitted. This is because, that MTA will make the determination of where the final destination is and how it will be delivered based on the VPIM submission LHS. Submission MTAs should take care to not blindly place outdial calls to any number submitted (e.g., international numbers or "1-900" numbers). Ideally, senders should be authenticated to confirm their outdialing privileges. 6. IANA Considerations 6.1: IANA Registration form for new value of GSTN address service-selector "VPIM" To: IANA@isi.edu Parsons Expires: 22/04/02 [Page 7]
VPIM Addressing October 22, 2001 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-ietf-vpim-address-02.txt. Security Considerations: See the Security Consideration section of "VPIM Addressing", draft-ietf-vpim-address-02.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 : +1-613-763-2697 Email: gparsons@nortelnetworks.com 6.2: 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-ietf-vpim-address-02.txt. Security Considerations: See the Security Consideration section of "VPIM Addressing", draft-ietf-vpim-address-02.txt. Parsons Expires: 22/04/02 [Page 8]
VPIM Addressing October 22, 2001 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 : +1-613-763-2697 Email: gparsons@nortelnetworks.com 6.3: 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-ietf-vpim-address-02.txt. Security Considerations: See the Security Consideration section of "VPIM Addressing", draft-ietf-vpim-address-02.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 : +1-613-763-2697 Email: gparsons@nortelnetworks.com 6.4: IANA Registration form for new value of GSTN address qualif-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: Parsons Expires: 22/04/02 [Page 9]
VPIM Addressing October 22, 2001 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-ietf-vpim-address-02.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-ietf-vpim-address-02.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 : +1-613-763-2697 Email: gparsons@nortelnetworks.com 6.5: IANA Registration form for new value of GSTN address qualif- type1 keyword and value "EXT" To: IANA@isi.edu Subject: Registration of new values for the GSTN address qualif-type1 element "EXT" qualif-type1 "keyword" name: ext qualif-type1 "value" ABNF definition: ext = 1*(DIGIT) Description of Use: EXT is used to specify the numeric optional extension That idenitifies a particular VPIM mailbox as described in "VPIM Addressing", draft-ietf-vpim-address-02.txt. Use Restriction: Parsons Expires: 22/04/02 [Page 10]
VPIM Addressing October 22, 2001 The use of "EXT" is intended for the "VPIM" service- selector, however is may have meaning and be used outside the VPIM service. Security Considerations: See the Security Consideration section of "VPIM Addressing", draft-ietf-vpim-address-02.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 : +1-613-763-2697 Email: gparsons@nortelnetworks.com 6.6: IANA Registration form for new value of GSTN address qualif- type1 keyword and value "DL" To: IANA@isi.edu Subject: Registration of new values for the GSTN address qualif-type1 element "DL" qualif-type1 "keyword" name: dl qualif-type1 "value" ABNF definition: dl = 1*(DIGIT) Description of Use: DL is used to specify the numeric optional personal Distribution list for a particular VPIM mailbox as described in "VPIM Addressing", draft-ietf-vpim-address-02.txt. Use Restriction: The use of "DL" is intended for the "VPIM" service- selector, however is may have meaning and be used outside the VPIM service. Security Considerations: See the Security Consideration section of "VPIM Addressing", draft-ietf-vpim-address-02.txt. Person & email address to contact for further information: Glenn W. Parsons Parsons Expires: 22/04/02 [Page 11]
VPIM Addressing October 22, 2001 Nortel Networks P.0. Box 3511 Station C Ottawa, On K1Y 4H7 Canada Phone: +1-613-763-7582 Fax : +1-613-763-2697 Email: gparsons@nortelnetworks.com 7. 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. [E.164] 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", RFC 2846, June 2000. [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. [VPIMV2R2] Vaudreuil, Greg, Parsons, Glenn, "Voice Profile for Internet Mail, version 2", <draft-ietf-vpim-vpimv2r2-04.txt>, October 2001. [IVM] McRae, Stuart, Parsons, Glenn, "Internet Voice Mail", <draft- ietf-ivm-02.txt>, April 2001. [FAX-ADDR] Allocchio, C., "Minimal FAX address format in Internet Mail", <draft-ietf-fax-faxaddr-v2-04.txt>, August 2001. [GSTN-ADDR] Allocchio, C., "Minimal GSTN address format in Internet Mail", <draft-ietf-fax-minaddr-v2-04.txt>, August 2001. 8. Author's Addresses Glenn W. Parsons Nortel Networks Ottawa, ON K1Y 4H7 Phone: +1-613-763-7582 Fax : +1-613-763-2697 Email: gparsons@nortelnetworks.com Parsons Expires: 22/04/02 [Page 12]
VPIM Addressing October 22, 2001 9. Full Copyright Statement Copyright (C) The Internet Society (2001). 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. Parsons Expires: 22/04/02 [Page 13]
