Re: [Ecrit] [Fwd: New Version Notification for draft-kim-ecrit-text-00]

But...

The use case under discussion here is an end entity running LOST (and therefore presumably an IP terminal) communicating with an IP connected PSAP, and therefore not involving any SMS at all. Therefore for this use case, the endpoints presumably have the full range of choice of standardised messaging mechanisms as defined by IETF.

If you did want to extend the use case to SMS, I would also content that the current standardised SMS to SIP based IM mechanisms would break the solution suggested here as well.

(Also ignoring the fact as well that current SMS is by default deferred delivery (i.e. delivered in the operator's own time and when the recipient is available, and therefore not suitable for emergency calls in the first place.)

Keith

________________________________
From: Richard Barnes [mailto:rbarnes@bbn.com]
Sent: Tuesday, November 24, 2009 2:35 PM
To: DRAGE, Keith (Keith)
Cc: ecrit
Subject: Re: [Ecrit] [Fwd: New Version Notification for draft-kim-ecrit-text-00]

The problem here is that SMS is a page-mode medium that's used for session-mode-style conversations (see, e.g., the iPhone SMS interface).  So if you're going to gateway SMS into SIP and preserve these pseudo-sessions, you either have to do something like what this draft does, or you have to somehow have the gateway create sessions and map SMS messages into them.  I'm not immediately sure which would be a better solution, but using MESSAGE seems marginally more light-weight.

--Richard

On Nov 23, 2009, at 8:34 PM, DRAGE, Keith (Keith) wrote:

So did I read this correctly.

You are essentially saying you want to use page mode messaging to do session mode messaging?

Didn't SIMPLE investigate that path and reject it and go for MSRP as the solution to session mode messaging?

Why does emergency calling suddenly make the original decision making process in SIMPLE redundant?

regards

Keith

________________________________
From: ecrit-bounces@ietf.org [mailto:ecrit-bounces@ietf.org] On Behalf Of Wonsang Song
Sent: Monday, November 23, 2009 8:53 PM
To: ecrit@ietf.org<mailto:ecrit@ietf.org>
Subject: [Ecrit] [Fwd: New Version Notification for draft-kim-ecrit-text-00]

Hi,

Just wanted to send a note about a new draft on using SIP MESSAGE for emergency texting.

The draft is an outcome of the collaboration between Columbia University and Verizon to build an emergency texting prototype system which allows people to use IM and SMS to "call" for emergency help.

If you have comments or questions, please let me know.

Thank you,
Wonsang Song

-------- Original Message --------
Subject: New Version Notification for draft-kim-ecrit-text-00
Date: Tue, 17 Nov 2009 11:55:17 -0800 (PST)
From: IETF I-D Submission Tool <idsubmission@ietf.org><mailto:idsubmission@ietf.org>
To: jyk@cs.columbia.edu<mailto:jyk@cs.columbia.edu>
CC: wonsang@cs.columbia.edu<mailto:wonsang@cs.columbia.edu>, hgs@cs.columbia.edu<mailto:hgs@cs.columbia.edu>, p.boni@verizon.com<mailto:p.boni@verizon.com>,      michael.g.armstrong@verizon.com<mailto:michael.g.armstrong@verizon.com>

A new version of I-D, draft-kim-ecrit-text-00.txt has been successfuly submitted by Jong Yul Kim and posted to the IETF repository.

Filename:  draft-kim-ecrit-text
Revision:  00
Title:  Emergency Text Messaging using SIP MESSAGE
Creation_date:  2009-11-16
WG ID:  Independent Submission
Number_of_pages: 11

Abstract:
This memo describes best current practices on how to use the SIP
MESSAGE method for emergency text messaging from citizen and visitors
to authorities.

Status of this Memo

This Internet-Draft is submitted to IETF in full conformance with the
provisions of BCP 78 and BCP 79.

Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups.  Note that
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This Internet-Draft will expire on May 20, 2010.

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