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.

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.

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

Protocol Translation Specifications¶

• XMPP - SIP Presence
• XMPP - SIP Message
• XMPP - MSRP Chat
• XMPP - MSRP Group Chat

Progress¶

The software is in active development and progress announcements are made on SIP beyond VoIP mailing list

• Software Library Analysis - Completed
• Gateway Design - Completed
• SylkServer XMPP Gateway application Packaging - See Python and Debian manual installation
• SIP2SIP integration - Completed (IM and Presence to gmail.com, jabber.org and jit.si domains)
• SIP-XMPP Chat - Completed
• SIP-XMPP Presence - Completed
• SIP-XMPP Multi-party Chat - Under development
• SIP-XMPP Jingle Audio - Roadmap
• SIP-XMPP File Transfer - Roadmap