SylkServer

h1. SIP/XMPP Gateway

The goal of this task is to implement a bidirectional signaling and media gateway for Presence, Instant Messaging including multi-party chat, Audio, Video and File Transfer between SIP and XMPP protocols. This research and development project is part of the WormHole Project sponsored by "NLNet and AG Projects":http://nlnet.nl/project/xmpp-sip/.

!http://sylkserver.com/images/sylk-server-diagram.png!

h2. Deployment Scenario

By pointing the correspondent DNS records for the SIP and XMPP services to the address of the gateway, any packet sent to or connection established to the gateway by one of the protocols is transparently translated into the other.

h2. Specifications and Standards

* SIP (RFC3261) and related RFCs for ICE, RTP, MSRP (too many to mention)

* XMPP core (RFC 6120) http://xmpp.org/rfcs/rfc6120.html

* XMPP extensions http://xmpp.org/xmpp-protocols/xmpp-extensions

* Instant Messaging and Presence http://xmpp.org/rfcs/rfc6121.html

* Multi-User Chat http://xmpp.org/extensions/xep-0045.html

* File Transfers http://xmpp.org/extensions/xep-0096.html

* Audio and Video Jingle http://xmpp.org/extensions/xep-0166.html

* Audio and Video  Jingle RTP http://xmpp.org/extensions/xep-0167.html

* Audio and Video Jingle ICE (UDP) http://xmpp.org/extensions/xep-0176.html

* Delivering Conference Information to Jingle Participants http://xmpp.org/extensions/xep-0298.html

h3. Protocol Translation Specifications

* "XMPP - SIP Presence":http://xmpp.org/internet-drafts/draft-saintandre-sip-xmpp-presence-02.html

* "XMPP - SIP Message":http://xmpp.org/internet-drafts/draft-saintandre-sip-xmpp-im-01.html

* "XMPP - MSRP Chat":http://xmpp.org/internet-drafts/draft-saintandre-sip-xmpp-chat-03.html

* "XMPP - MSRP Group Chat":http://xmpp.org/internet-drafts/draft-saintandre-sip-xmpp-groupchat-01.html

h2. Progress

The software is in active development and progress announcements are  made on "SIP beyond VoIP":http://lists.ag-projects.com/mailman/listinfo/sipbeyondvoip mailing list 

* "Software Library Analysis":http://sylkserver.ag-projects.com/projects/sylkserver/wiki/DesginXMPP_analysis - Completed

* "Gateway Design":http://sylkserver.ag-projects.com/projects/sylkserver/wiki/DesginXMPP_arch - Completed

* "SylkServer":http://sylkserver.com XMPP Gateway application Packaging - See Python and Debian "manual installation":http://projects.ag-projects.com/projects/documentation/wiki/Repositories#Manual-Installation

* "SIP2SIP":http://sip2sip.info integration - Completed (IM and Presence to gmail.com, jabber.org and jit.si domains)

* "SIP-XMPP Chat":http://sylkserver.ag-projects.com/projects/sylkserver/wiki/DesginXMPP_im - Completed

* "SIP-XMPP Presence":http://sylkserver.ag-projects.com/projects/sylkserver/wiki/DesginXMPP_presence - Completed

* "SIP-XMPP Multiparty Chat":http://sylkserver.ag-projects.com/projects/sylkserver/wiki/DesginXMPP_conference - Under development

* "SIP-XMPP Jingle Audio":http://sylkserver.ag-projects.com/projects/sylkserver/wiki/DesginXMPP_jingle - Roadmap

* "SIP-XMPP File Transfer ":http://sylkserver.ag-projects.com/projects/sylkserver/wiki/DesginXMPP_ft - Roadmap