There is new SIP server software available for multi-party IM chat. SIP chatserver is an open source conference bridge that supports MSRP chat sessions. It can be used for ad-hoc conferencing by SIP end-points.The project is hosted at http://chatserver.ag-projects.com

 

The server implements relevant features from the following standards:

    • MSRP protocol RFC4975
    • MSRP ad-hoc multi-party chat sessions draft-ietf-simple-chat-03
    • Common Presence and Instant Messaging (CPIM): Message Format RFC3862
    • Framework for Conferencing with the Session Initiation Protocol (SIP) RFC4353
    • Framework for Centralized Conferencing draft-ietf-xcon-framework-11
    • Conference event package RFC4575

 

The software is provided under the GPL LICENSE.

Installation instructions are available at:

http://chatserver.ag-projects.com/wiki/Installation

The development of SIP chatserver has been sponsored by NLNet foundation.