SIP/XMPP Gateway¶

The goal of this task is to implement a bidirectional signaling and media gateway for Presence, Instant Messaging, Multiparty IM, Audio, 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 Signaling and related media planes (RTP and MSRP)¶

• SIP (RFC3261) and related RFCs for SDP, ICE, RTP (too many to mention)
• MSRP Protocol http://tools.ietf.org/html/rfc4975
• MSRP Relay extension http://tools.ietf.org/html/rfc4976
• Alternative Connection Model for MSRP http://tools.ietf.org/html/rfc6135
• Multi-party Chat Using MSRP http://tools.ietf.org/html/draft-ietf-simple-chat-14

XMPP Signaling and Media¶

• 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
• SIP-XMPP Chat - Completed
• SIP-XMPP Presence - Completed
• SIP-XMPP Multiparty Chat - Completed
• SIP-XMPP Jingle Audio - Roadmap
• SIP-XMPP File Transfer - Roadmap

The completed items are operational on * SIP2SIP which supports Chat and Presence to gmail.com an jabber.org domains