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From: "Toyoda, Kiyoshi" <ktoyoda@rdmg.mgcs.mei.co.jp>
Date: Mon, 04 Sep 2000 12:07:39 +0900
To: Claudio.Allocchio@elettra.trieste.it, tamura@toda.ricoh.co.jp
Cc: ietf-fax@imc.org
Subject: Implementation Report of RFC2304 Interworking test
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Allocchio-san and Tamura-san

Hiroshi Tamura wrote in the draft minutes of FAX WG at Pittsburgh
>It was confirmed that "formal" report is necessary for request of
>Draft Standard consideration.

I made the draft of report about RFC2304 interworing test
according to the format of "Implementation Reports" published 
on the IETF WEB site. Please find attaced text below.


----------------------------------------------------------------------

RFC2304 IMPLEMENTATION REPORT

This report describes the implementation and interoperability testing
of RFC2304 "Minimal FAX address format in Internet Mail". The test was 
held on the 28th June 2000 in Japan.

The following independently implemented and jointly tested RFC2304.

  Matsushita Graphic Communication Systems Inc.
  TOYOCOM Inc.

This report is organized in 2 sections. Section 1 describes the method and 
results of RFC2304 interoperability testing. Section 2 describes the 
independent RFC2304 implementations, by implementor. 

RFC2304 is the application of RFC2303 generic specification to FAX addresses.

-----------------------------------------------------------------------
SECTION 1: RFC2304 INTEROPERABILITY TESTING
-----------------------------------------------------------------------

1. Testing Method

1-1.  TOYOCOM sends the data to Internet Fax (IFAX) of M.G.C.S. (figure 1) . 

  ---------           ------------         ----------        ------
 | Gateway |         |   IFAX     |       |Onramp GW |      |      |
 | TOYOCOM | ------->|  M.G.C.S.  |------>| DX-2000  |----->| PC   |
 |_________| Internet|____________| PSTN  |__________| LAN  |______|

                           figure 1

1)OnRamp Gateway of TOYOCOM sends the data with the following address formula. 

    FAX=+81312345677@ifax.mgcs.mei.co.jp

    FAX=+81312345677/T33S=1234@ifax.mgcs.mei.co.jp

    FAX=+81312345677/T33S=5678@ifax.mgcs.mei.co.jp

    FAX+81-3-12345677@ifax.mgcs.mei.co.jp

    FAX=+81312345677/T33S=1234@ifax.mgcs.mei.co.jp  and
    FAX=+81312345677/T33S=5678@ifax.mgcs.mei.co.jp

    /FAX=+81-3-12345677/T33S=1234/@ifax.mgcs.mei.co.jp  and
    /FAX=+81.3.12345677/T33S=5678/@ifax.mgcs.mei.co.jp

2)IFax of M.G.C.S. sends the fax to DX-2000 with 
  the addresss 03-12345677 including sub-address 1234 and/or 5678. 

3)DX-2000(IFAX made by Panafax) sends e-mail to PC which has
  the corresponding e-mail address of the sub address.
  DX-2000 is used for verification method of sub address field in 
  FIF. 


1-2.  M.G.C.S. sends the data to the OffRamp Gateway of TOYOCOM (figure 2) .

  ---------           ------------         ----------        ------
 | IFAX    |         |  Gateway   |       |Onramp GW |      |      |
 | M.G.C.S | ------->|  TOYOCOM   |------>| DX-2000  |----->| PC   |
 |_________| Internet|____________| PSTN  |__________| LAN  |______|

                           figure 2

1)M.G.C.S. sends the data to the OffRamp Gateway of TOYOCOM (figure 2).

   FAX=+81312345677@ifax.toyocom.co.jp

   FAX=+81312345677/T33S=1234@ifax.toyocom.co.jp
 
  etc.

2),3) repeat same procedure as article 2-1.


3. Results

We satisfied the items of "RFC2304 Interworking Configuration Matrix" 
which has deliverd to Fax Connect II. (http://www.imc.org/imc-faxconnect/)
The items are below.

1) Minimum Specification (MUST)
All implementations supporting this FAX over e-mail address format MUST
supports as a minimum the specification described in this document(RFC 
2304)

2) qualif-type1 element  (REQUIRED)
The minimal addressing for the fax service also requires support for
a "qualif-type1" elment. This element is an OPTIONAL element of the 
fax address, but its support, when present, is REQUIRED.

3) Fax address minimum specification  (REQUIRED)
The minimal specification of a fax in e-mail address is:
fax-address = fax-mbox["T33S="sub-addr]
fax-mbox = "FAX="global-phone

4) Multiple T.33 Subaddresses  (MUST)
In case a particular service requires multiple T.33 subaddresses,
and these subaddresses need to be given on the same "fax-mbox",
multiple "fax-email" elements will be used.


-----------------------------------------------------------------------
SECTION 2: RFC2304 IMPLEMENTATIONS
-----------------------------------------------------------------------

Name of implementation: MGCS Internet Fax
Organization:           Matsushita Graphic Communication Systems Inc.
Platforms:              original appliance
Location of code:       proprietary to MGCS Inc.
Contact:                Kiyoshi Toyoda <ktoyoda@rdmg.mgcs.mei.co.jp>
Implemented Features:   Full features of RFC2304


Name of implementation: TOYOCOM OnRamp and OffRamp Gateway
Organization:           TOYOCOM Inc.
Platforms:              Windows NT  Server ver.4.0
Location of code:       proprietary to TOYOCOM Inc.
Contact:                Katsuhiko Mimura <mimu@toyocom.co.jp>
Implemented Features:   Full features of RFC2304

Kiyoshi Toyoda


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Folks,

W.R.T. PNDN issue, from the minutes at Pittsburgh,

FAX:
> Some members commented that PNDN issue should also be discussed in FAX
> WG. Whether to take it and add in WG charter will be discussed in ML.
> AD agrees to it.

VPIM:
> Clarification: The chair emphasised that we had proposed the deletion of
> IMPORTANT in Critical Content, and so we no longer need PNDNs for this
> purpose, but that no consideration had yet been given to whether we still
> progress Partial Delivery Notifications (and develop Partial Message
> Disposition Notifications) anyway.

To FAX WG people:
Please discuss it, if you're interested in it.

To Eric:
Some FAX WG people do not follow it well.
Could you please explain PNDN briefly?

To VPIM WG people:
Please say somthing in ietf-fax@imc.org,
if you have comments about it.

Regards,
--
Hiroshi Tamura, Ricoh Company, LTD.
E-mail: tamura@toda.ricoh.co.jp



From owner-ietf-fax@mail.imc.org  Mon Sep  4 02:59:08 2000
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Mimura-san,

Questions.

Does the version-01 reflect the results of Pittsburgh meeting.
There were lots of suggestions and etc there.
Please refer our meeting minutes.

If not reflected, I recommend you to submit the version-02,
which includes the suggestions at Pittsburgh.

I'm sorry I have not read through version-01 yet.

Regards,
--
Hiroshi Tamura, Ricoh Company, LTD.
E-mail: tamura@toda.ricoh.co.jp



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Folks,

W.R.T. PNDN issue, from the minutes at Pittsburgh,

FAX:
> Some members commented that PNDN issue should also be discussed in FAX
> WG. Whether to take it and add in WG charter will be discussed in ML.
> AD agrees to it.

VPIM:
> Clarification: The chair emphasised that we had proposed the deletion of
> IMPORTANT in Critical Content, and so we no longer need PNDNs for this
> purpose, but that no consideration had yet been given to whether we still
> progress Partial Delivery Notifications (and develop Partial Message
> Disposition Notifications) anyway.

To FAX WG people:
Please discuss it, if you're interested in it.

To Eric:
Some FAX WG people do not follow it well.
Could you please explain PNDN briefly?

To VPIM WG people:
Please say somthing in ietf-fax@imc.org,
if you have comments about it.

Regards,
--
Hiroshi Tamura, Ricoh Company, LTD.
E-mail: tamura@toda.ricoh.co.jp




From owner-ietf-fax@mail.imc.org  Mon Sep  4 22:52:55 2000
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From: Katsuhiko Mimura <mimu@toyocom.co.jp>
Organization: TOYO Communication Equipment CO., LTD.
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Tamura-san,

Hiroshi Tamura wrote:
> Does the version-01 reflect the results of Pittsburgh meeting.
> There were lots of suggestions and etc there.
> Please refer our meeting minutes.

The version-01 reflect the results of Pittsuburgh meeting.
but , I might miss some suggestions or others .

I miss the Automatic retransmission and the scope of Onramp gateway.

I will update on the version-02.

-----------------------------------------------
 Ktasuhiko Mimura   E-mail mimu@toyocom.co.jp
 TOYOCOM(TOYO COMMUNICATION EQUIPMENT CO., LTD)
 Multimedia Engineering Department
 Communication Systems Division
 Tel +81-467-74-3584 Fax +81-467-74-3934


From owner-ietf-fax@mail.imc.org  Thu Sep  7 11:37:21 2000
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Subject: Updated DRAFT-IETF-FAX-MINADDR-V2-02.TXT, 
 DRAFT-IETF-FAX-FAXADDR-V2-02.TXT
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--3213-1103527590-968341484=:538977353
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Hallo,

here are the updated versions of the 2 I-D which are going in last call
soon.

The only changes from version "01" are a typo correction in
DRAFT-IETF-FAX-FAXADDR-V2-02.TXT (thank you Yokoyama-san for detecting
it!) and the updated reference list in order to include RFC 2846 which was
published last June. 

When the new I-Ds will be in the I-Ds repository, we will issue the WG 
last call.

Regards,

------------------------------------------------------------------------------
Claudio Allocchio             G   A   R   R          Claudio.Allocchio@garr.it
                        Project Technical Officer
tel: +39 040 3758523      Italian Academic and       G=Claudio; S=Allocchio;
fax: +39 040 3758565        Research Network         P=garr; A=garr; C=it;

     PGP Key: http://security.fi.infn.it/cgi-bin/spgpk.pl?KeyId=0C5C2A09

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--3213-1103527590-968341484=:538977353--


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From: "Cancio, Vivian" <Vivian.Cancio@pahv.xerox.com>
To: ietf-fax@imc.org
Subject: Implementers Guide Version 03d
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Please, review new version. October is our dateline. 
Section 5 was partly rewritten by D. Wing and also Section 6 was added to
clarify the encoding of '=' in ORCPT.

Vivian



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IETF Fax Working Group                                             =
Vivian Cancio
Internet Draft                                                 Xerox =
Corporation
Category: Work-in-progress                                         Mike =
Moldovan
Intended Category: Informational                         G3Nova =
Technology, Inc.
                                                                  =
Hiroshi Tamura
                                                             Ricoh =
Company, LTD.
                                                                        =
Dan Wing
                                                                   =
Cisco Systems
=20
                                                                6 =
September 2000
                                                           Expires: =
January 2001


         Implementers Guide for Facsimile Using Internet Mail
             <draft-ietf-fax-implementers-guide-03d.txt>


Status of this memo

  This document is an Internet-Draft and is in full conformance with
  all provisions of Section 10 of RFC 2026.

  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.

=20
  [[INTENDED STATUS: This memo provides information for the Internet
  community.  It does not specify an Internet standard of any kind.
  Distribution of this memo is unlimited.]]

Copyright Notice

  Copyright (C) The Internet Society 1999.  All Rights Reserved.

Abstract

  This document is intended for the implementers of software which uses =
email
  to send to facsimiles using RFC 2305 and 2532.
  This is an informational document and its guidelines do not supersede =
the =20
  referenced documents.=20
 =20
Cancio, Moldovan, Tamura, Wing   Work-in-progress                    =
[Page 1]
Internet draft                   Implementers Guide          6 =
September 2000

Table of contents

  1. Introduction    =20
     1.1 Organization of this document
     1.2 Convention of this document                        =20
     1.3 Discussion of this document                          =20
  2. Terminology=20
  3. Implementation Issues Specific to Simple Mode=20
     3.1 Simple Mode Fax Senders
       3.1.1 Multipart-alternative                              =20
     3.2 Simple Mode Fax Receivers
       3.2.1 Multipart-alternative and Storage Capacity
  4. Implementation Issues Specific to Extended Mode
     4.1 Multipart-alternative=20
     4.2 Correlation of MDN with Original Message=20
     4.3 Correlation of DSN with Original Message=20
     4.4 Extended Mode Receivers
       4.4.1 Confirmation of receipt and processing from UA Clients
           4.4.1.1 Discrepancies in MDN [9] Interpretation
           4.4.1.2 Disposition-Type: "dispatched"
           4.4.1.3 "Subject" of MDN in Success and Failure Cases=20
           4.4.1.4 "Body" of MDN in Success and Failure Cases=20
       4.4.2 Extended Mode Receivers that are MTAs (or ESMTP servers)
           4.4.2.1 Success Case Example
           4.4.2.2 Failure Case Example 1
           4.4.2.3 Failure Case Example 2
       4.4.3 Extended Mode Receivers that are POP3/IMAP4=20
           4.4.3.1 Success Case Example
           4.4.3.2 Failure Case Example
       4.4.4 Receiving Multiple TIFF-FX Attachments=20
    5. Implementation Issues the File Format
     5.1 IFD Placement in TIFF file & Profile-S Constraints
     5.2 Precautions for implementers of RFC 2301 [4]=20
       5.2.1 TIFF Readers: Be Cautious with Headers
       5.2.2 TIFF Writers: Be Cautious in use of IFD=20
       5.2.3 IFD Entry Errors
       5.2.4 Strip Errors
       5.2.5 Image Errors
       5.2.6 Profile Specific Errors
  6. Implementation Issues for Internet Fax Addressing
  7. Security considerations=20
  8. Acknowledgements =20
  9. References=20
  10. Authors' addresses=20
  Full copyright statement=20
  Revision history=20








Cancio, Moldovan, Tamura, Wing   Work-in-progress                    =
[Page 2]
Internet draft                   Implementers Guide          6 =
September 2000


1. Introduction

This document clarifies published RFCs which standardize facsimile=20
communications using Internet Email. The intent is to prevent =
implementations=20
that deviate in such a way as to cause interoperability problems.=20

1.1 Organization of this document

See Section 2 for terminology.

   a) Simple mode clarifications
   b) Extended mode clarifications
   c) File format clarifications
   d) Fax Addressing Clarifications
   e) Open implementation issues

1.2. Convention of this document

[[[Editorial comments from authors are embedded in triple brackets
and will be removed before publication]]]

1.3 Discussion of this document

  Discussion of this document should take place on the Internet fax
  mailing list hosted by the Internet Mail Consortium (IMC).  Please
  send comments regarding this document to:

      ietf-fax@imc.org

  To subscribe to this list, send a message with the body 'subscribe'
  to "ietf-fax-request@imc.org".

  To see what has gone on before you subscribed, please see the
  mailing list archive at:

      http://www.imc.org/ietf-fax/

=20
2. Terminology

Simple Mode   - RFC 2305, "A Simple Mode of Facsimile Using Internet =
Mail" [2]
Extended Mode - RFC 2532, "Extended Facsimile Using Internet Mail" [3]
TIFF-FX       - RFC 2301, "File Format for Internet Fax" [4]
UA            - User Agent
DSN           - Delivery Status Notification [7]
MDN           - Message Disposition Notification [9]
In examples:  - "C:" is used to indicates lines sent by the client, and
                "S:" to indicate those sent by the server.
MTA           - Message Transfer Agent




Cancio, Moldovan, Tamura, Wing   Work-in-progress                    =
[Page 3]
Internet draft                   Implementers Guide          6 =
September 2000


3. Implementation Issues Specific to Simple Mode

3.1 Simple Mode Fax Senders

3.1.1 Multipart/alternative

Although a requirement of MIME compliance (see RFC 2046, Section =
5.1.4), some=20
email client implementations are not capable of correctly processing =
messages=20
with a MIME Content-Type of "multipart/alternative". If a sender is =
unsure if=20
the recipient is able to correctly process a message with a =
Content-Type of=20
"multipart/alternative", the sender should assume the worst and not use =
this=20
MIME Content-Type.


3.2 Simple Mode Fax Receivers

3.2.1 Multipart/alternative and Storage Capacity

Devices with little storage capacity are unable to cache previous parts =
of a=20
multipart/alternative message.  In order for such devices to correctly =
process=20
only one part of a multipart/alternative message, such devices may =
simply use=20
the first process-able part of a multipart/alternative message. This is =
viable=20
because the parts within a multipart/alternative are always sent in =
least-
fidelity to most-fidelity order.=20

This behavior means that even if subsequent, higher-fidelity parts may =
have been=20
process-able they will not be used. =20

This behavior can cause user dissatisfaction because when two =
high-fidelity=20
but low-memory devices are used with each other, the lowest-fidelity =
part of=20
the multipart/alternative will be processed.

The solution to this problem is for the sender to determine the =
capability of=20
the recipient and send only high fidelity. However a mechanism to =
determine the=20
recipient capabilities priorto an initial message sent to the recipient =
doesn't=20
yet exist on the Internet.

After an initial message is sent, the Extended Mode mechanism described =
in RFC=20
2532 [3], Section 3.3 enables a recipient to include its capabilities =
in a=20
delivery and/or a disposition notification:  in a DSN if the recipient =
device is=20
an RFC 2532/ESMTP [3] compliant server or in an MDN if the recipient is =
only an=20
UA.=20











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4. Implementation Issues Specific to Extended Mode

4.1 Multipart/Alternative

     Sections 3.1.1 and 3.2.1 are also applicable to this mode.

4.2. Correlation of MDN with Original Message

     To re-iterate a paragraph from section 2.1, RFC 2298 [9], it is
     included here:

	A message that contains a Disposition-Notification-To header SHOULD
      also contain a Message-ID header as specified in RFC 822 [10]. =
This=20
      will permit automatic correlation of MDNs with original messages =
by
      user agents.

4.3 Correlation of DSN with Original Message

Similar to the requirement to correlate an MDN, above, DSNs also need =
to be=20
correlated. This is best done using the ENVID parameter in the "MAIL"=20
command. See Sections 3 and 5.4 of RFC 1891 [5] for details.


4.4 Extended Mode Receivers

Confirmation that the facsimile image (TIFF-FX attachment) was =
delivered and=20
successfully processed is an important aspect of the extended mode of =
facsimile=20
using Internet mail.

4.4.1 Confirmation of receipt and processing from UA Clients

When a message is received with the "Disposition-Notification-To" =
header and the=20
receiver has determined if the message is process-able, it may generate =
a:

a) Negative MDN in case of error, or
b) Positive MDN if requested by the sender.
=20
The advantage of receiving a requested MDN acknowledgement from an =
Extended Mode=20
recipient is the indication of success or failure to process the =
TIFF-FX file=20
attachment that was sent. The attachment constitutes the facsimile =
message and=20
not the body-content of the message. Therefore an Extended Mode sender =
would=20
expect, and it is recommended that the Extended Mode receiver will =
acknowledge=20
(with an MDN) the success or failure to decode and process the TIFF =
file=20
attachment.

Implementers of the Extended Mode [3] should provide consistency in the =
feedback=20
provided to senders in the form of error codes and/or =
failure/successful=20
messages.





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4.4.1.1 Discrepancies in MDN [9] Interpretation

An Extended Mode sender must be aware that RFC 2298 [9] does not make a =

distinction between the success or failure to decode the body-content =
part of=20
the message, from the success or failure to decode a file attachment.=20
Consequently MDNs may be received which do not reflect the success or =
failure to=20
decode the attached TIFF-FX file, but rather to decode the body-content =
part of=20
the message.


4.4.1.2 Disposition-Type: "dispatched".

The receiver of an MDN request, if it is also an a RFC 2532 compliant =
device=20
that automatically prints the received Internet mail messages and =
attachments,=20
or forwards the attachment via GSTN fax, should respond with a =
"disposition-
type: dispatched" when the received message is successfully processed. =
This=20
recommendation adheres to the definition in RFC 2298 [9] and helps to=20
distinguish the returned MDNs for proper handling.

4.4.1.3 "Subject" of MDN in Success and Failure Cases

Because legacy e-mail applications do not parse the machine-readable =
headers, e-
mail users depend on the human-readable parts of the MDN to recognize =
the type=20
of acknowledgement that is received. For the sake of consistency and to =
help=20
users visually distinguish a DSN from an MDN returned notification, it =
is=20
suggested that the text 'disposition' be used for MDNs in the 'Subject' =
field.
Example:
   Subject: Disposition Notification (MDN) - Successful  or
   Subject: Disposition Notification (MDN) =96 Failure

4.4.1.4 "Body" of MDN in Success and Failure Cases

If the receiver of an MDN request is also an RFC 2532 [3] compliant =
device that=20
automatically prints the received Internet mail messages and =
attachments, or=20
forwards the attachment via GSTN fax, for consistency the following =
text is=20
suggested for the body of the message.

In case of success:

"This is a Return Receipt for the mail that you sent to [above, or =
below, or=20
here address, etc]. The message and attached file[s] may have been =
printed,=20
faxed or saved. This is no guarantee that the message has been read or=20
understood".

In case if failure:

"This is a Return Receipt for the mail that you sent to [above, or =
below, or=20
here address, etc]. An error occurred while attempting to decode the =
attached=20
file[s].

[[[Include details on error; and maybe recognize language (of sender) =
in headers=20
to send above text in appropriate language. From D.W.]]]

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4.4.2 Extended Mode Receivers that are MTAs (or ESMTP servers)

It is strongly encouraged that SMTP server-based implementations should =

implement "SMTP Service Extension for Returning Enhanced Error Codes" =
[6]. This=20
standard is easy to implement and it allows detailed standardized =
success and=20
error indications to be returned to the sender by the submitting MTA.
=20
The following examples are provided as illustration only. They should =
not be=20
interpreted as limiting the protocol or the DSN form. If the examples =
conflict=20
with the definitions in the standards (RFC 1891/1893/1894/2034), the =
standards=20
take precedence and the examples in this documents should not be used.=20


4.4.2.1 Success Case Example

In the following example the sender <jean@water.line.com> sends a =
message to=20
receiver <ifax@copper.point.com> which is an ESMTP server and the =
receiver=20
successfully decodes the message.

SMTP Sequence:

   S: 220 copper.point.com SMTP service ready
   C: EHLO water.line.com
   S: 250-copper.point.com
   S: 250-DSN
   S: 250 ENHANCEDSTATUSCODES
   C: MAIL FROM:<jean@water.line.com> RET=3DHDRS ENVID=3DMM123456
   S: 250 2.1.0 Originator <jean@water.line.com> ok
   C: RCPT TO:<ifax@copper.point.com> NOTIFY=3DSUCCESS,FAILURE =
ORCPT=3Drfc822;
      ifax@copper.point.com
   S: 250 2.1.5 Recipient <ifax@copper.point.com> ok
   C: DATA
   S: 354 Send message, ending in <CRLF>.<CRLF>
    ...
    ...[[[Replace 'dots' with actual data. From D.W.]]]
    ...
    ...
   S: 250 2.0.0 Message accepted
   C: QUIT
   S: 221 2.0.0 Goodbye













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DSN (to jean@water.line.com):

   Date: Mon, 12 Dec 1999 19:01:57 +0900
   From: postmaster@copper.point.com
   Message-ID: <19991212190157.01234@copper.point.com>
   To: jean@water.line.com
   Subject: Delivery Notification (DSN)

   MIME-Version: 1.0
   Content-Type: multipart/report; report-type=3Ddelivery-status;
       boundary=3DJUK199912121854870001

   --JUK199912121854870001
   Content-type: text/plain;

   Your message (id MM123456) was successfully delivered to
   ifax@copper.point.com.

   --JUK199912121854870001
   Content-type: message/delivery-status

   Reporting-MTA: dns; copper.point.com
   Original-Envelope-ID: MM123456
   Final-Recipient: rfc822;ifax@copper.point.com
   Action: delivered
   Status: 2.1.5 (Destination address valid)
   Diagnostic-Code: smtp; 250 2.1.5 Recipient <ifax@copper.point.com> =
ok

   --JUK199912121854870001
   Content-type: message/rfc822

     (headers of returned message go here)
      [[[Replace with actual header data. From D.W.]]]

   --JUK199912121854870001--


















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4.4.2.2 Failure Case Example 1

In this example the receiver determines it is unable to decode the =
attached TIFF=20
file AFTER it has received the SMTP message. The receiver then sends a =
'failure'=20
DSN.

SMTP Sequence:

  This is the same as the case a). After the sequence, a decode error =
occurs at
  the receiver, so instead of a 'success' DSN, a 'failure' DSN is sent. =



DSN(to jean@water.line.com):

   Date: Mon, 12 Dec 1999 19:31:20 +0900
   From: postmaster@copper.point.com
   Message-ID: <19991212193120.87652@copper.point.com>
   To: jean@water.line.com
   Subject: Delivery Notification (DSN) - Failure
   MIME-Version: 1.0
   Content-Type: multipart/report; report-type=3Ddelivery-status;
       boundary=3DJUK199912121934240002

   --JUK199912121934240002
   Content-type: text/plain;

   Your message (id MM123456) to ifax@copper.point.com resulted in an =
error
   in attempt to decode the attached file.

   --JUK199912121934240002
   Content-type: message/delivery-status

   Reporting-MTA: dns; copper.point.com
   Original-Envelope-ID: MM123456
   Final-Recipient: rfc822;ifax@copper.point.com
   Action: Failed
   Status: 5.6.1 (Media not supported)
   Diagnostic-Code: smtp; 554 5.6.1 Decode error

   --JUK199912121934240002
   Content-type: message/rfc822

   (headers of returned message go here)
   [[[Replace with actual header data. From D.W.]]]
   =20

   --JUK199912121934240002--






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4.4.2.3 Failure Case Example 2

In this example the receiver determines it is unable to decode the =
attached TIFF=20
file BEFORE it accepts the SMTP transmission. [[[It should be noted =
that the=20
results could be the same if instead the receiver could not decode the =
'body=20
content' of the message. D.W. & V.C.]]]

SMTP sequence:

   S: 220 copper.point.com SMTP service ready
   C: EHLO water.line.com
   S: 250-copper.point.com
   S: 250-DSN
   S: 250 ENHANCEDSTATUSCODES
   C: MAIL FROM:<jean@water.line.com> RET=3DHDRS ENVID=3DMM123456
   S: 250 2.1.0 Originator <jean@water.line.com> ok
   C: RCPT TO:<ifax@copper.point.com> NOTIFY=3DSUCCESS,FAILURE =
ORCPT=3Drfc822;
      ifax@copper.point.com=20
   S: 250 2.1.5 Recipient <ifax@copper.point.com> ok
   C: DATA
   S: 354 Send message, ending in <CRLF>.<CRLF>
    ...
    ... (the attached file cannot be decoded by receiver)
    ... [[[Replace 'dots' with actual data. From D.W.]]]
    ...
   C: .
   S: 554 5.6.1 Media not supported
   C: QUIT
   S: 221 2.0.0 Goodbye

DSN:

Note: In this case, the previous MTA generates the DSN that is =
forwarded to=20
the original sender. The receiving MTA has not accepted delivery and =
therefore=20
can not generate a DSN.



4.4.3 Extended Mode Receivers that are POP3/IMAP4

NOTE: There are no new definitions here in this document. The =
definitions
      of disposition-types and disposition-modifiers are defined in
      RFC 2298[9]. This section provides examples on how POP3/IMAP4 =
devices
      may use the already defined values.









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These examples are provided as illustration only. They should not be =
interpreted=20
as limiting the protocol or the MDN form. If the examples conflict with =
the=20
definitions in the MDN [9] standard, the standard takes precedence and =
the=20
examples in this documents should not be used.=20


4.4.3.1 Success Case Example=20

If the original sender receives an MDNs which has "displayed", =
"dispatched" or=20
"processed" disposition-type without disposition-modifier, the receiver =
may have=20
possibly received or decoded the attached TIFF-FX file that it sent. It =
does not=20
guarantee that the receiver displays, prints or saves the attached =
TIFF-FX file=20
See Section 4.4.1.1, Discrepancies in MDN Interpretation.

   NOTE: This example does not include the third component of the MDN.

   Date: 14 Dec 1999 17:48:44 +0900
   From: ken_recipient@bronze.dot.com
   Message-ID: <19991214174844.98765@silver.dot.com>
   Subject: Disposition Notification (MDN)
   To: mary@silver.dot.com
   Mime-Version: 1.0
   Content-Type: multipart/report; =
report-type=3Ddisposition-notification;
    boundary=3D"61FD1001_IFAX"

   --61FD1001_IFAX
   Content-Type: text/plain

   This is a Return Receipt for the mail that you sent to
   "ken_recipient@bronze.dot.com". The message and attached files may=20
   have been printed, faxed or saved. This is no guarantee that the
   message has been read or understood.

   --61FD1001_IFAX
   Content-Type: message/disposition-notification

   Reporting-UA: ken-ifax.bronze.dot.com; barmail 1999.10
   Original-Recipient: rfc822;ken_recipient@bronze.dot.com
   Final-Recipient: rfc822;ken_recipient@bronze.dot.com
   Original-Message-ID: <19991214174010O.mary@silver.dot.com>
   Disposition: automatic-action/MDN-send-automatically; dispatched

   --61FD1001_IFAX--










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4.4.3.2 Failure Case Example=20

If the original sender receives an MDN with an "error" or "warning"=20
disposition-modifier, it is possible that the receiver could not =
receive or=20
decode the attached TIFF-FX file. Currently there is no mechanism to =
associate=20
the disposition-type with the handling of the main content body of the =
message=20
or the attached TIFF-FX file.

   Date: 14 Dec 1999 19:48:44 +0900
   From: ken_recipient@bronze.dot.com
   Message-ID: <19991214194844.67325@silver.dot.com>
   Subject: Disposition Notification (MDN)
   To: mary@silver.dot.com
   Mime-Version: 1.0
   Content-Type: multipart/report; =
report-type=3Ddisposition-notification;
    boundary=3D"84FD1011_IFAX"

   --84FD1011_IFAX
   Content-Type: text/plain

   This is a Return Receipt for the mail that you sent to
   "ken_recipient@bronze.dot.com". A decoding error occurred
   in the attached file.

   --84FD1011_IFAX
   Content-Type: message/disposition-notification

   Reporting-UA: ken-ifax.bronze.dot.com; barmail 1999.10
   Original-Recipient: rfc822;ken_recipient@bronze.dot.com
   Final-Recipient: rfc822;ken_recipient@bronze.dot.com
   Original-Message-ID: <199912141823123.mary@silver.dot.com>
   Disposition: automatic-action/MDN-send-automatically; =
processed/error

   --84FD1011_IFAX
   Content-Type: message/rfc822

   [original message goes here]

   --84FD1011_IFAX--














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4.4.4 Receiving Multiple TIFF-FX Attachments

A received email message could contain multiple TIFF-FX attachments and =
each=20
distinct TIFF-FX file may use different encoding and/or resolution. A =
received=20
email message could include TIFF-FX attachment and non-TIFF-FX =
attachments.

There is currently no mechanism to identify, in a returned =
notification, the=20
attachments that were successfully decoded from those that could not be =
decoded.

If the Extended Mode recipient is unable to decode any of the attached =
files, it=20
is recommended that the Extended Mode recipient return a decoding =
error.


5. Implementation Issues Specific to the File Format

5.1 IFD Placement in TIFF file & Profile S Constraints

Low memory devices, which support resolutions greater than the
required Profile-S, may be memory-constrained such that those
devices cannot properly handle arbitrary placement of TIFF IFDs
within a TIFF file.

To interoperate with a receiver that is constrained, it is strongly
recommended that senders always place the IFD at the beginning of
the TIFF-FX file when using any of the Profiles defined in RFC 2301.

5.2 Precautions for implementers of RFC 2301 [4]
=09
Interoperability testing of the File Format for Internet Fax [4]
yielded useful information that may help developers avoid the same
mistakes.  The following compiled list of TIFF/RFC 2301 [4] errors
were encountered during interoperability testing and is provided so
that implementers of TIFF readers and writers can take precautionary
measures.

   a) Although Profile S of TIFF-FX [4] specifies that files should
      be in little-endian order, during testing it was found that
      some common TIFF writers create big-endian files.  If possible,
      the TIFF reader should be coded to handle big-endian files.
      TIFF writers should always create little-endian files to be
      compliant with the standard and to allow interoperation with
      memory-constrained devices;

   b) Bytes 0-1 of the Image File Header are supposed to be set to "II" =

      (4949h) or "MM" (4d4dh) to indicate the byte order.  During
      testing, other values were encountered.  Readers should be coded
      to exit gracefully if the byte order field contain values other
      than "II" or "MM", and writers should ensure the correct value
      is used;

  =20


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   c) Bytes 2-3 of the Image File Header are the "magic number" and are
      supposed to be equal to 42 (2Ah).  Readers should be coded to =
exit
      gracefully if the magic number is a different value, and writers
      should ensure the correct value is used;

   d) Readers should be coded to correctly handle the first and
      subsequent IFD offsets do not point beyond the end of the
      TIFF-FX file, and writers should not point the IFD offset
      beyond the end of the file;

   e) Readers should be coded to handle the first IFD offset being on a
      non-word boundary, and writers should create the first IFD offset
      on a word boundary;

   f) Readers and writers should be careful to correctly handle IFDs
      with other TIFF profile data such as strip image data and
      header data.

   g) Some readers have difficulties with IFDs in certain locations.
      If possible, such reader implementations should be corrected
      and TIFF writers should take extra precautions to not place
      IFDs in these positions: IFD at the end of the profile, IFD
      intercalated with another IFD data like XResolution, DateTime,
      or strip image data.

   h) Some readers do not support child IFDs.  Child IFDs should
      not be created by TIFF writers.

   i) Some readers do not recognize the GlobalParametersIFD.  The
      GlobalParametersIFD should not be created by TIFF writers.


5.2.3 IFD Entry Errors

Implementers should make sure when generating a TIFF profile that:

   a) All entries exist. Missing entries make it impossible to read
      the image data.

   b) Tags will not have two types of data (for example SHORT or
      LONG).

   c) Tags do not have the wrong type of data (for example RATIONAL
      instead of SRATIONAL).

   d) The count of type is correct for a specified tag (it is not null
      and the matches the tag ID)

   e) Tags appear in the right order in the IFD.




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   f) Tags as PageNumber or ImageLayer have values that match the
      number of IFDs or the image data.

   g) Tags are unique within an IFD.

=20
5.2.4 Strip Errors

    Implementers should make sure when generating a TIFF profile that:

    a) Strip data is not overlapped with another file data

    b) The strip offset does not point outside file

    c) The strip length is not null or the strip offset + strip length
       does not point outside file

    d) There is only one bit order (not more) specified for data =
storing.

5.2.5 Image Errors

   a) Implementers should be cautious when generating a TIFF profile
      that the type of image tags and the data from the strip data
      match.  For example, if in case of a black and white image the
      PhotometricInterpretation tag value is 0 (bit 0 means white) the
      image will appear inverted.

   b) Implementers should be cautious when generating a TIFF profile
      that for the special color spaces (ITULAB, YCBCR, CMYK) the
      parameters used for transformations are correct and compliant to
      the specification.

   c) Implementers should make sure when generating a TIFF profile
      that the tag values for XPosition and YPosition are correct.

5.2.6 Profile Specific Errors
   =20
   a) Implementers should make sure when generating a TIFF profile
      that all combinations of tag values are correct. Special
      attention should be given to the sets: XResolution, YResolution
      and ImageWidth and PhotometricInterpretation, SamplesPerPixel,
      and BitsPerSample.

   b) Implementers should make sure when generating a TIFF Profile M
      that the compression used for the layers is correct. Typical
      errors are for the Mask layer not be compressed with a black and
      white compression and the Background and Foreground layer not to
      be compressed with a color compression.




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6. Implementation Issues for Internet Fax Addressing

 The GSTN addresses in e-mail addresses specifications (currently =
RFC2303,=20
 RFC2304 and RFC2846) require the use of the "=3D" and "+" characters =
inside
 the local-part (see RFC822) and forward-path and reverse-path (see =
RFC821)
 of the address. In these fields the "=3D" and "+" characters are =
allowed and
 thus they MUST NOT be encoded in any way. Also other message headers =
fields
 extensions (like Original-Recipient, see RFC2298) allows these =
characters
 which thus MUST NOT be encoded.

 However GSTN addresses can also appear in other fields, and in =
particular=20
 inside ESMTP parameters as esmtp-value (see RFC1869); the ORCPT =
parameter
 (see RFC1891) is one of such cases. When the "=3D" and "+" characters =
in=20
 GSTN addresses appear as esmtp-value, they MUST be encoded as hexchar=20
 (see RFC1891).

 In particular, the same GSTN address could require different behavior=20
 inside the same ESMTP command line:

  RCPT TO:<FAX=3D+390408565@faxmail.com> =
ORCPT=3DFAX+3D+2B290408565@fxmail.com


7. Security considerations

With regards to this document, Sections 5 in RFC 2305 [2] and Section 4 =
in
RFC 2532 [3] apply.


8. Acknowledgements

he authors gratefully acknowledge the following persons who contributed =
or=20
made comments on earlier versions of this memo:
Claudio Allocchio, Richard Coles, Ryuji Iwazaki, Graham Klyne, James =
Rafferty,=20
and Kensuke Yamada.


9. References

[1] RFC 2542, "Terminology and Goals for Internet Fax",
    Masinter, L.,
    March 1999.

[2] RFC 2305, "A Simple Mode of Facsimile Using Internet Mail",
    Toyoda, K., Ohno, H., Murai, J. and Wing, D.,
    March 1998.

[3] RFC 2532, "Extended Facsimile Using Internet Mail",
    Masinter, L. and Wing, D.
    March 1999.




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[4] RFC 2301 "File Format for Internet Fax",
    McIntyre, L., Zilles, S., Buckley, R., Venable, D., Parsons, G.
    and J. Rafferty,
    March 1998.

[5] RFC 1891 "SMTP Service Extension for Delivery Status Notification",
    Moore, K.,=20
    January 1996.

[6] RFC 1893 "Enhanced Mail System Status Codes",
    Vaudreuil, G.,
    January 1996.

[7] RFC 1894 "An Extensible Message Format for Delivery Status =
Notifications",
    Moore, K., Vaudreuil, G.,
    January 1996.

[8] RFC 2034 "SMTP Service Extension for Returning Enhanced Error =
Codes",
    Freed, N.,
    October 1996.

[9] RFC 2298 "An Extensible Message Format for Message Disposition=20
    Notifications", Fajman, R.
    March 1998.

[10] RFC 822 "Standard for the Format of ARPA Internet Text Messages",
     Crocker. D.,
     August 1982.

[11] RFC 821 "A Simple Mail Transfer Protocol",
     Postel, D.,
     August 1982.


10. Authors' addresses

  Vivian Cancio
  Xerox Corporation
  Mailstop PAHV-211
  3400 Hillview Ave.
  Palo Alto, CA 94304 USA
  Telephone: +1-650-813-7591
  Facsimile: +1-650-845-2341
  Email: vivian.cancio@pahv.xerox.com

  Mike Moldovan
  G3 Nova Technology, Inc.
  2794 Queens Way
  Thousand Oaks, CA 91362 USA
  Telephone: +1-805-245-4625
  Facsimile: +1-805-245-4214
  Email: mmoldovan@g3nova.com

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  Hiroshi Tamura
  Ricoh Company, LTD.
  2446 Toda, Atsugi City,
  Kanagawa-Pref., 243-0023 Japan
  Telephone: +81-46-228-1743
  Facsimile: +81-46-228-7500
  Email: tamura@toda.ricoh.co.jp


  Dan Wing
  Cisco Systems, Inc.
  101 Cooper Street
  Santa Cruz, CA 95060  USA
  Telephone:  +1 831 457 5200
  Facsimile:  +1 831 457 5208
  EMail:  dwing@cisco.com


Full copyright statement

  Copyright (C) The Internet Society 1999.  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
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Cancio, Moldovan, Tamura, Wing   Work-in-progress                   =
[Page 18]
Internet draft                   Implementers Guide          6 =
September 2000=20




Revision history

  [[[RFC editor: Please remove this section on publication]]]
Version 2
 1) Changed first sentence of 4.4.1.1=20
 2) Added Sections: 4.4.1.2, 4.4.1.3, 4.4.1.4, 4.4.2.1, 4.4.2.2, =
4.4.2.3,
    4.4.3.1, 4.4.3.2 and 4.4.4
 3) Deleted Sections: 6 and 7
 4) Changed heading of Section 4.4.1=20
 5) In examples: replaced ifax@water.line.com
    with ifax@copper.point.com as well as other editorial changes
    in the examples through the document.
 6) In examples: changed text in subject field of DSN
 7) In examples: changed text in subject field of MDN
 8) In examples: changed text in text field of MDN
 9) Reworded text through out the document
10) Replaced heading in 5.2.1 [to "TIFF Readers: Be Cautious with =
Headers"]
11)     "      "        5.2.2 [to "TIFF Writers: Be Cautious in use of =
IFD"]


Version 3
 1) Section 5.2.1 and 5.2.2 were merged into 5.2; some of the =
paragraphs
 in Section 5 were reworded for clarity.
 2) The RFC 821 was added to the Reference section
 3) The Reference section format was modified for consistency.
 4) A new Section 6 was added.

























Cancio, Moldovan, Tamura, Wing   Work-in-progress                   =
[Page 19]

------_=_NextPart_000_01C019E6.4FA85970--


From owner-ietf-fax@mail.imc.org  Sat Sep  9 04:40:47 2000
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We're not weird......we're sexy!!!!!!!

http://205.232.74.175






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To: Vivian.Cancio@pahv.xerox.com
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Vivian,

A comment as a chiar.
After collecting comments, please submit to internet-drafts@ietf.org
as version 03. Version 2 is formerly the latest I-D.

> Section 5 was partly rewritten by D. Wing and also Section 6 was added to
> clarify the encoding of '=' in ORCPT.

Editorial additions or modifications for Section 6 and References(section 9).

> 6. Implementation Issues for Internet Fax Addressing
> 
>  The GSTN addresses in e-mail addresses specifications (currently RFC2303, 
>  RFC2304 and RFC2846) require the use of the "=" and "+" characters inside
>  the local-part (see RFC822) and forward-path and reverse-path (see RFC821)
>  of the address. In these fields the "=" and "+" characters are allowed and
>  thus they MUST NOT be encoded in any way. Also other message headers fields
>  extensions (like Original-Recipient, see RFC2298) allows these characters
>  which thus MUST NOT be encoded.

RFC2303 -> RFC 2303 [A] or [A]
RFC2304 -> RFC 2304 [B] or [B]
RFC2846 -> RFC 2846 [C] or [C]

RFC822 -> RFC 822 [10] or [10]
RFC821 -> RFC 821 [11] or [11]
RFC2298 -> RFC 2298 [9] or [9]

>  However GSTN addresses can also appear in other fields, and in particular 
>  inside ESMTP parameters as esmtp-value (see RFC1869); the ORCPT parameter
>  (see RFC1891) is one of such cases. When the "=" and "+" characters in 
>  GSTN addresses appear as esmtp-value, they MUST be encoded as hexchar 
>  (see RFC1891).

RFC1869 -> RFC 1869 [D] or [D]
RFC1891 -> RFC 1891 [5] or [5]

Please add RFC references on [A],[B],[C],[D],[E] in section 7.
A:12
B:13
C:14
D:15
E:16

I do not read section 1 through 4 yet. But, if they are the same
as the version 02, no problems for me.

Regards,
--
Hiroshi Tamura, Ricoh Company, LTD.
E-mail: tamura@toda.ricoh.co.jp




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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Internet Fax Working Group of the IETF.

	Title		: Minimal GSTN address format in Internet Mail
	Author(s)	: C. Allocchio
	Filename	: draft-ietf-fax-minaddr-v2-02.txt
	Pages		: 10
	Date		: 11-Sep-00
	
This memo describes a simple method of encoding GSTN addresses 
(commonly called 'telephone numbers') in the local-part of Internet 
email addresses, along with an extension mechanism to allow encoding 
of additional standard attributes needed for email gateways to 
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As with all Internet mail addresses, the left-hand-side (local-part)
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From owner-ietf-fax@mail.imc.org  Tue Sep 12 16:42:37 2000
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Date: Tue, 12 Sep 2000 20:07:57 +0100
To: Hiroshi Tamura <tamura@toda.ricoh.co.jp>
From: Graham Klyne <GK@dial.pipex.com>
Subject: Re: Progressing content negotiation, timely delivery
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Tamura-san,

I am going through some _old_ e-mails, catching up on review comments for 
FFPIM.

I think that your comments (copied below, with my responses) have been 
addressed in the -02 version of the content negotiation draft.

If you notice I have missed anything, please let me know.

#g
--


Thank you for your comments.  I think that I maybe need to clarify some 
aspects of what I meant to say.

The issue of receiver state information is raised because it has 
implications for the design and capacity of a receiving system.  By 
receiver state, I mean that a receiver needs to remember that it has 
received an initial message AND that it has requested an alternative form 
of data.  Without this, there is a possibility that message data may be 
silently lost, which is very much to be avoided.

Receiver state MUST contain, as a minimum:
- the fact that message data was received, and alternative data has been 
requested.
- a unique message identifier
- the time at which alternative
This allows the receiver to re-issue a request for an alternative data 
format, or to report an error, if the requested data does not arrive in a 
reasonable time.

It MAY also include:
- a copy of the data originally received.  This would allow the receiver to 
display the original data if alternative data is not received.
- details of the data format supplied, and alternatives offered.  This may 
allow improved diagnostics in the event that the alternative data requested 
is not received.


At 05:31 PM 4/12/00 +0900, Hiroshi Tamura wrote:
> > For content negotiation, see the slide headed "The big issue: receiver
> > state management".
>
>If there is a state in receiver, receiver wants to know
>whether incoming message is the first received message or the second one.

This information should be implicit in the form of message, so this should 
not need to be explicitly part of the state maintained by a receiver.  Only 
the _first_ message should contain the message disposition request 
indicating the sender's willingness to send alternative forms.

In practice, a receiver would have implicit information about first- and 
subseqent- messages, because it would establish state information only in 
response to the first message.

>I think identifier or something in sending message is necessary
>for this purpose.

Yes, I agree.  This should be added in section 3.1 of the proposal.


>State: Idle, In-Negotiation, .....  for each id or something.

I think the only meaningful state here is "in negotiation"

>In some implementations, receiver may keep the first received
>Profile S data during state:In-Negotiation, and if a timer expires
>receiver may print it.

I agree this is the ideal situation.  But I think we must recognize that 
some receivers may be unable to store message content for extended periods, 
so we have tried to avoid making this an absolute requirement.

>There may be no memory case in Negotiation, as your slides say.
>In this case, some methods in which receiver notify sender of
>receiver state may solve this situation. But difficult ?

I'm not sure what you mean by "no memory case".

Do you mean that the receiver has insufficient memory to store state?  In 
which case, I'd suggest that the receiver simply displays the received data 
and respond per "extended mode".

Or do you mean that the receiver runs out of memory after entered 
negotiaton.  I think the exact recovery path here would depend upon a 
number of factors:  preferably, the receiver should display any data 
received;  at least, it must display a diagnostic, and try to notify the 
sender of failure.

I don't think there's any reason for the receiver to notify the sender of 
its internal state;  I think that all the sender needs to know is:
(a) that the receiver has asked for something different,
(b) that the transfer has completed successfully,
(c) that the transfer has failed, or
(d) that it is waiting for one of the above responses from the receiver.

>In fact, "State" in receiver is necessary for real implementation,
>irrespective of whether "State" is described in draft or not.

In a sense, I agree.  But prior to e-mail based negotiation, the state 
information is very transient (e.g. for T.30, it is maintained only for the 
duration of a connection, when receiving an extended-mode fax, it exists 
only between receipt and disposition (e.g. printing) of the data.  These 
are all characterized by having clear upper bounds on the "amount" of 
receiver state maintained at any instant in time.

With e-mail based content negotiation, the number of outstanding messages a 
any time is not theoretically bounded.  For a typical computer system, this 
is not really a problem as disk capacity is generally sufficient to deal 
with "arbitrary" amounts of state information (the capacity limits are so 
much greater than normal expected requirement that they don't normally 
represent a practical constraint).  But for a "fax machine" style of 
receiver, memory is a scarce resource, so there is some conflict with the 
requirements of e-mail based content negotiation.

>Some should be described. Others remain implementation matter.

I agree.

In talking about receiver state, what I am really raising is the issue of 
how to maintain bounds on the amount of receiver state that must be 
kept.  I believe we have some reasonable ideas in this regard, but I want 
to be clear about the issue so that implementers can judge for themselves.


--end--

------------
Graham Klyne
(GK@ACM.ORG)



From owner-ietf-fax@mail.imc.org  Wed Sep 13 07:05:10 2000
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Graham,

Thank you for your mail.

> I am going through some _old_ e-mails, catching up on review comments for 
> FFPIM.
> 
> I think that your comments (copied below, with my responses) have been 
> addressed in the -02 version of the content negotiation draft.

Most of my comments has already been addressed there,
though some may be necessary to modify or add.

<snip>

I think it is better to separate the minimum things for content-negotiation
and the implementation issues such as "state". The implementatios issues
are not normative but informative.
But I think they should be better to describe in the document.

BTW, from the minutes of VPIM WG at Pittsburgh,

> Fax, CONNEG & RESCAP WGs update (Graham Klyne)

<snip>

> The first area covered is content negotiation (which could also be
> applicable to VPIM), which allows a recipient to request an alternative
> form of a message it received.

<snip>

> Action: Fax WG chair to take this discussion to the VPIM and FAX lists.

<snip>

> Work Group Focus - Glenn Parsons
> --------------------------------
> 
> To close, Glenn reiterated the Work Groups focus areas:
> 
> 1. Progress VPIMv2 to draft
> 2. IVM
> 3. The VPIM addenda items including: addressing, directory, IMAP, content
> negotiation

I could not attend the 2nd VPIM meeting. I do not know exactly.
But, the one think I can say is that the idea of content-negotiation
mechanism can also be used for VPIM.

So, for the time being, I recommend you to post in VPIM WG ML
as well as FAX WG ML, for this issue.

Glenn,
is it OK?

Regards,
--
Hiroshi Tamura, Ricoh Company, LTD.
E-mail: tamura@toda.ricoh.co.jp



From owner-ietf-fax@mail.imc.org  Wed Sep 13 09:25:57 2000
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To: Hiroshi Tamura <tamura@toda.ricoh.co.jp>
From: Graham Klyne <GK@dial.pipex.com>
Subject: Re: Progressing content negotiation, timely delivery
Cc: iwa@rdl.toshibatec.co.jp, ietf-fax@imc.org, gparsons@nortelnetworks.com
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Tamura-san,

At 07:30 PM 9/13/00 +0900, Hiroshi Tamura wrote:
>I think it is better to separate the minimum things for content-negotiation
>and the implementation issues such as "state". The implementatios issues
>are not normative but informative.
>But I think they should be better to describe in the document.

OK, I'll try and ensure some separation in the next revision.
We have many comments to work through!

FYI, I'm hoping to get an updated timely delivery draft out very soon.

>BTW, from the minutes of VPIM WG at Pittsburgh,

[...]

>I could not attend the 2nd VPIM meeting. I do not know exactly.
>But, the one think I can say is that the idea of content-negotiation
>mechanism can also be used for VPIM.
>
>So, for the time being, I recommend you to post in VPIM WG ML
>as well as FAX WG ML, for this issue.

Yes, I think it would be good to cross-post announcements

But I also think it would be better to have any ongoing technical 
discussion in a single place -- and I think the fax WG list is it.

#g

------------
Graham Klyne
(GK@ACM.ORG)



From owner-ietf-fax@mail.imc.org  Wed Sep 13 11:06:41 2000
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Date: Wed, 13 Sep 2000 14:25:19 +0100
To: IETF fax WG <ietf-fax@imc.org>
From: Graham Klyne <GK@dial.pipex.com>
Subject: Question about requirements for timely delivery
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Folks,

I would like to understand what sort of time interval is felt to be a 
reasonable when requesting timely delivery:

   (a) less than one second
   (b) 1-10 seconds
   (c) 10-60 seconds
   (d) over a minute

If (a), and maybe (b), then I am concerned that the timing resolution 
offered by RFC 2852 may not be fine enough.  RFC 2852 allows the deliver-by 
interval to be expressed as a whole number of seconds.  Given that the 
value must be recalculated by each relay I fear that accumulated errors may 
make intervals less than (say) 10 seconds difficult to achieve reliably, 
and certainly not intervals less than a second.

#g
------------
Graham Klyne
(GK@ACM.ORG)



From owner-ietf-fax@mail.imc.org  Wed Sep 13 11:54:27 2000
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From: "Gary Frerking (TurboPower)" <garyf@turbopower.com>
To: IETF fax WG <ietf-fax@imc.org>
Subject: RE: Question about requirements for timely delivery
Date: Wed, 13 Sep 2000 09:22:21 -0600
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>> I would like to understand what sort of time interval is felt to be a
reasonable when requesting timely delivery:

(c) seems reasonable to me, using normal POTS/PBX faxing as a point of
comparison. It's very possible to break over the 10 sec mark when a call is
working through the switches and so on -- particularly with international
calls.

The high end of the (c) range seems a bit high to me -- if there was a "(c1)
10 - 30 seconds" choice, I would pick that.

-- Gary Frerking
-- TurboPower Software Co.
-- garyf@turbopower.com



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Subject: Re: Progressing content negotiation, timely delivery
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Graham,

<snip>

> FYI, I'm hoping to get an updated timely delivery draft out very soon.

Thanks!

> >So, for the time being, I recommend you to post in VPIM WG ML
> >as well as FAX WG ML, for this issue.
> 
> Yes, I think it would be good to cross-post announcements
> 
> But I also think it would be better to have any ongoing technical 
> discussion in a single place -- and I think the fax WG list is it.

OK, I see.
I think there is a large change in the next content-negotiation I-D,
including the chapter structure. I would like the editors to judge
when the discussion should be cc'ed to VPIM ML.

Any other suggestions?

Regards,
--
Hiroshi Tamura, Ricoh Company, LTD.
E-mail: tamura@toda.ricoh.co.jp



From owner-ietf-fax@mail.imc.org  Thu Sep 14 06:37:03 2000
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To: IETF fax WG <ietf-fax@imc.org>, IETF VPIM List <vpim@lists.neystadt.org>
From: Graham Klyne <GK@dial.pipex.com>
Subject: FYI:  Content feature RFCs
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FYI,

Two new RFCs are recently published, dealing with matters that may affect 
content negotiation.

(VPIM folks should also be aware that Internet fax group is discussing a 
content negotiation proposal that could be applicable to VPIM/IVM.)

---

         URL:        ftp://ftp.isi.edu/in-notes/rfc2912.txt


In "A Syntax for Describing Media Feature Sets", an expression
format is presented for describing media feature capabilities using
simple media feature tags.

This memo defines a Multipurpose Internet Mail Extensions (MIME)
'Content-features:' header that can be used to annotate a MIME
message part using this expression format, and indicates some ways it
might be used.

This document is a product of the Content Negotiation Working Group of
the IETF.

This is now a Proposed Standard Protocol.

---

         URL:        ftp://ftp.isi.edu/in-notes/rfc2913.txt

In "A Syntax for Describing Media Feature Sets", an expression
format is presented for describing media feature capabilities using
simple media feature tags.

This memo defines a media feature tag whose value is a Multipurpose
Internet Mail Extensions (MIME) content type.  This allows the
construction of feature expressions that take account of the MIME
content type of the corresponding data.

This document is a product of the Content Negotiation Working Group of
the IETF.

This is now a Proposed Standard Protocol.

---

#g

------------
Graham Klyne
(GK@ACM.ORG)



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--NextPart

A New Internet-Draft is available from the on-line Internet-Drafts directories.
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	Filename	: draft-ietf-fax-faxaddr-v2-02.txt
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From: Hiroshi Tamura <tamura@toda.ricoh.co.jp>
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Folks, 

This is a Working Group Last Call notice for the following two documents.

1 draft-ietf-fax-minaddr-v2-02.txt (update of RFC 2303)
- Minimal GSTN address format in Internet Mail -

For your information, the following is the technical summary
when requesting to IESG.

   This memo describes a simple method of encoding GSTN addresses
   (commonly called "telephone numbers") in the local-part of Internet
   email addresses, along with an extension mechanism to allow encoding
   of additional standard attributes needed for email gateways to
   GSTN-based services. The method used is of general use for various
   application services where GSTN addresses and e-mail addresses are
   involved, like FAX and Voice Mail. The standard encoding method allows
   an easy interoperability of onramp/offramp gateways connecting e-mail
   service to other messaging systems using GSTN addresses. Currently
   the generic encoding method is being deployed inside Internet FAX 
   compliant applications, which proved to interoperate correctly, but
   also global messaging application services are adopting it. The document
   also provides the needed documentation, procedures and templates for
   a correct registration c/o IANA of the extensions which can be defined.

2 draft-ietf-fax-faxaddr-v2-02.txt (update of RFC 2304)
- Minimal FAX address format in Internet Mail -

For your information, the following is the technical summary
when requesting to IESG.

   This memo describes a simple method of encoding GSTN addresses of
   facsimile devices in the local-part of Internet email addresses.
   It is an application of draft-ietf-fax-minaddr-v2-02.txt for the
   specific internet fax service. It also defines one qualifier needed
   to support correclty ITU T.33 subaddresses inside internet fax e-mail
   addresses. The specification has been implemented indipendently inside
   internet fax products and the tests proved correct interoperability.
   It also includes the IANA registration of the T33S qualifier.

.......

At Pittsburgh meeting, we reviewed them. We agreed there are no problems
for Draft Standard consideration. Also, the formal interworking report
is already circulated. For your information, it is attached to this mail.

Therefore, we can do a Working Group Last Call for the above documents.

After WG Last Call, they will be submitted to IESG with the interworking
report for Draft Standard consideration.

The WG Last Call period is 2 weeks. It will close on Oct 2.   
If you have any comments, please circulate them to our ML by Oct 2.

Regards,   
--
Hiroshi Tamura
IETF FAX WG co-chair

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----------------------------------------------------------------------

RFC2304 IMPLEMENTATION REPORT

This report describes the implementation and interoperability testing
of RFC2304 "Minimal FAX address format in Internet Mail". The test was 
held on the 28th June 2000 in Japan.

The following independently implemented and jointly tested RFC2304.

  Matsushita Graphic Communication Systems Inc.
  TOYOCOM Inc.

This report is organized in 2 sections. Section 1 describes the method and 
results of RFC2304 interoperability testing. Section 2 describes the 
independent RFC2304 implementations, by implementor. 

RFC2304 is the application of RFC2303 generic specification to FAX addresses.

-----------------------------------------------------------------------
SECTION 1: RFC2304 INTEROPERABILITY TESTING
-----------------------------------------------------------------------

1. Testing Method

1-1.  TOYOCOM sends the data to Internet Fax (IFAX) of M.G.C.S. (figure 1) . 

  ---------           ------------         ----------        ------
 | Gateway |         |   IFAX     |       |Onramp GW |      |      |
 | TOYOCOM | ------->|  M.G.C.S.  |------>| DX-2000  |----->| PC   |
 |_________| Internet|____________| PSTN  |__________| LAN  |______|

                           figure 1

1)OnRamp Gateway of TOYOCOM sends the data with the following address formula. 

    FAX=+81312345677@ifax.mgcs.mei.co.jp

    FAX=+81312345677/T33S=1234@ifax.mgcs.mei.co.jp

    FAX=+81312345677/T33S=5678@ifax.mgcs.mei.co.jp

    FAX+81-3-12345677@ifax.mgcs.mei.co.jp

    FAX=+81312345677/T33S=1234@ifax.mgcs.mei.co.jp  and
    FAX=+81312345677/T33S=5678@ifax.mgcs.mei.co.jp

    /FAX=+81-3-12345677/T33S=1234/@ifax.mgcs.mei.co.jp  and
    /FAX=+81.3.12345677/T33S=5678/@ifax.mgcs.mei.co.jp

2)IFax of M.G.C.S. sends the fax to DX-2000 with 
  the addresss 03-12345677 including sub-address 1234 and/or 5678. 

3)DX-2000(IFAX made by Panafax) sends e-mail to PC which has
  the corresponding e-mail address of the sub address.
  DX-2000 is used for verification method of sub address field in 
  FIF. 


1-2.  M.G.C.S. sends the data to the OffRamp Gateway of TOYOCOM (figure 2) .

  ---------           ------------         ----------        ------
 | IFAX    |         |  Gateway   |       |Onramp GW |      |      |
 | M.G.C.S | ------->|  TOYOCOM   |------>| DX-2000  |----->| PC   |
 |_________| Internet|____________| PSTN  |__________| LAN  |______|

                           figure 2

1)M.G.C.S. sends the data to the OffRamp Gateway of TOYOCOM (figure 2).

   FAX=+81312345677@ifax.toyocom.co.jp

   FAX=+81312345677/T33S=1234@ifax.toyocom.co.jp
 
  etc.

2),3) repeat same procedure as article 2-1.


3. Results

We satisfied the items of "RFC2304 Interworking Configuration Matrix" 
which has deliverd to Fax Connect II. (http://www.imc.org/imc-faxconnect/)
The items are below.

1) Minimum Specification (MUST)
All implementations supporting this FAX over e-mail address format MUST
supports as a minimum the specification described in this document(RFC 
2304)

2) qualif-type1 element  (REQUIRED)
The minimal addressing for the fax service also requires support for
a "qualif-type1" elment. This element is an OPTIONAL element of the 
fax address, but its support, when present, is REQUIRED.

3) Fax address minimum specification  (REQUIRED)
The minimal specification of a fax in e-mail address is:
fax-address = fax-mbox["T33S="sub-addr]
fax-mbox = "FAX="global-phone

4) Multiple T.33 Subaddresses  (MUST)
In case a particular service requires multiple T.33 subaddresses,
and these subaddresses need to be given on the same "fax-mbox",
multiple "fax-email" elements will be used.


-----------------------------------------------------------------------
SECTION 2: RFC2304 IMPLEMENTATIONS
-----------------------------------------------------------------------

Name of implementation: MGCS Internet Fax
Organization:           Matsushita Graphic Communication Systems Inc.
Platforms:              original appliance
Location of code:       proprietary to MGCS Inc.
Contact:                Kiyoshi Toyoda <ktoyoda@rdmg.mgcs.mei.co.jp>
Implemented Features:   Full features of RFC2304


Name of implementation: TOYOCOM OnRamp and OffRamp Gateway
Organization:           TOYOCOM Inc.
Platforms:              Windows NT  Server ver.4.0
Location of code:       proprietary to TOYOCOM Inc.
Contact:                Katsuhiko Mimura <mimu@toyocom.co.jp>
Implemented Features:   Full features of RFC2304

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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Internet Fax Working Group of the IETF.

	Title		: Implementers Guide for Facsimile Using Internet Mail
	Author(s)	: V. Cancio, M. Moldovan, H. Tamura, D. Wing
	Filename	: draft-ietf-fax-implementers-guide-03.txt
	Pages		: 19
	Date		: 25-Sep-00
	
This document is intended for the implementers of software which uses email to send to facsimiles using RFC 2305 and 2532.
This is an informational document and its guidelines do not supersede the referenced documents.

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-fax-implementers-guide-03.txt

Internet-Drafts are also available by anonymous FTP. Login with the username
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A list of Internet-Drafts directories can be found in
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