Re: [dispatch] Charter Proposal: SIP-XMPP Mapping

[Salvatore Loreto <[e-mail]>]

I do support this proposal


/Sal

On 2/16/13 12:37 AM, Peter Saint-Andre wrote:
> Charter Proposal: SIP-XMPP Mapping
> DISPATCH WG
> IETF 86, Orlando
>
> Problem Statement
>
> The IETF has defined two signalling technologies that can be used
> for multimedia session negotiation, instant messaging, presence,
> file transfer, capabilities discovery, notifications, and other types of
> real-time functionality:
>
> o  The Session Initiation Protocol (SIP), along with various SIP
>     extensions developed within the SIP for Instant Messaging and
>     Presence Leveraging Extensions (SIMPLE) Working Group.
>
> o  The Extensible Messaging and Presence Protocol (XMPP), along
>     with various XMPP extensions developed by the IETF as well as by
>     the XMPP Standards Foundation.
>
> SIP has been focused primarily on media session negotiation (e.g. audio
> and video), whereas XMPP has been focused primarily on messaging and
> presence.  As a result, the technologies are mostly complementary.
> However, there is also some overlap between SIP and XMPP, since there
> are SIP extensions for messaging, presence, groupchat, file transfer
> (etc.) and there are XMPP extensions for multimedia session negotiation.
> This overlap has practical implications, since some deployed services
> use SIP for both media and (broadly) messaging, whereas other deployed
> services use XMPP for both messaging and media.  When such services wish
> to exchange information, they often need to translate their native
> protocol (either SIP or XMPP) to the other protocol (either XMPP or
> SIP).
>
> Implementers needing to perform such protocol mappings have often worked
> out their own heuristics for doing so.  Unfortunately, these heuristics
> are not always consistent, which can lead to interoperability problems.
>
> Objectives
>
> To make it easier for implementers to enable interworking between
> SIP-based systems and XMPP-based systems, several Internet-Drafts have
> defined guidelines for protocol mapping between SIP and XMPP, starting
> with draft-saintandre-xmpp-simple-00 in early 2004.  The current
> documents are:
>
> draft-saintandre-sip-xmpp-core
> draft-saintandre-sip-xmpp-presence
> draft-saintandre-sip-xmpp-im
> draft-saintandre-sip-xmpp-chat
> draft-saintandre-sip-xmpp-groupchat
>
> These documents are quite stable and the authors have received feedback
> from a number of implementers over the years.  However, implementers do
> not always know about these documents because they are Internet-Drafts
> and sometimes have expired.  Thus it would be helpful to polish them off
> and publish them as RFCs (and perhaps other documents in the same series,
> covering topics like media signalling, capabilities discovery, and file
> transfer).
>
> Deliverables
>
> 1. Address mapping and error handling
> 2. Presence mapping
> 3. Mapping for single instant messages
> 4. Mapping for one-to-one text chat sessions
> 5. Mapping for multi-user text chat sessions
>
> Any additional work would require a recharter.
>
> Milestones
>
> To be determined.
>
> ###
>
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-- 
Salvatore Loreto, PhD
www.sloreto.com