draft-ietf-vpim-address-01.txt
VPIM Work Group Glenn Parsons
Internet Draft Nortel Networks
Document: <draft-ietf-vpim-address-01.txt> April 24, 2001
Category: Standards Track
VPIM Addressing
Status of this Memo
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Glenn Parsons [Page 1]
VPIM Addressing April 24, 2001
Table of Contents
1. Abstract..........................................................3
2. Conventions used in this document.................................3
3. Introduction......................................................3
4. VPIM v2 Addressing................................................3
5. VPIM Addressing...................................................5
5.1 VPIM Submission LHS.........................................5
5.2 VPIM Submission Addresses...................................8
6. Security Considerations...........................................9
7. IANA Considerations..............................................10
7.1: IANA Registration form for new value of GSTN address......10
service-selector "VPIM"...................................10
7.2: IANA Registration form for new value of GSTN address......10
service-selector "VOICE"..................................10
7.3: IANA Registration form for new value of GSTN address......11
service-selector "AMIS"...................................11
7.4: IANA Registration form for new value of GSTN address......12
qualif-type1 keyword and value "SYSNUM"...................12
7.5: IANA Registration form for new value of GSTN address......13
qualif-type1 keyword and value "EXT"......................13
7.6: IANA Registration form for new value of GSTN address......14
qualif-type1 keyword and value "DL".......................14
8. References.......................................................14
9. Author's Addresses...............................................15
10. Full Copyright Statement........................................16
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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. 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.
3. Introduction
[VPIM2] does not place any restrictions on the email address format.
However, it does RECOMMEND to use 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.
4. 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
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5. 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".
5.1 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].
5.1.1 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 )
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[ 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:
VPIM=+14165977230/DL=93
5.1.2 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
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5.1.3 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)
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 "+"
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; [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+
5.1.4 The fax address
As defined in [FAX-ADDR],section 2.
5.2 VPIM Submission Addresses
Based on RFC2303, 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.
5.2.1 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.
5.2.2 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.
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5.2.3 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.
5.2.4 The fax-email
As defined in [FAX-ADDR], section 4.
6. 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.
7. IANA Considerations
7.1: 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:
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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-00.txt.
Security Considerations:
See the Security Consideration section of "VPIM
Addressing", draft-ietf-vpim-address-00.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 : +1-416-597-7005
Email: gparsons@nortelnetworks.com
7.2: 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-00.txt.
Security Considerations:
See the Security Consideration section of "VPIM
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Addressing", draft-ietf-vpim-address-00.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 : +1-416-597-7005
Email: gparsons@nortelnetworks.com
7.3: 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-00.txt.
Security Considerations:
See the Security Consideration section of "VPIM
Addressing", draft-ietf-vpim-address-00.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 : +1-416-597-7005
Email: gparsons@nortelnetworks.com
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7.4: 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:
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-00.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-00.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 : +1-416-597-7005
Email: gparsons@nortelnetworks.com
7.5: 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
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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-00.txt.
Use Restriction:
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-00.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 : +1-416-597-7005
Email: gparsons@nortelnetworks.com
7.6: 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
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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-00.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-00.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 : +1-416-597-7005
Email: gparsons@nortelnetworks.com
8. 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.
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[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-vpimv2r2-01.txt>, April 2001.
[IVM] McRrae, 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
- -v2-03.txt>, March 2001.
[GSTN-ADDR] Allocchio, C., "Minimal GSTN address format in Internet
Mail", <draft-ietf fax
- -minaddr-v2-03.txt>, March 2001.
9. Author's Addresses
Glenn W. Parsons
Nortel Networks
Ottawa, ON K1Y 4H7
Phone: +1-613-763-7582
Fax : +1-416-597-7005
Email: gparsons@nortelnetworks.com
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10. 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.
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