openMSRP

This project aims to implement an Open Source MSRP relay based on IETF specifications RFC4975 and RFC4976. MSRP is the abbreviation of Message Session Relay Protocol, a protocol for transmitting a series of related instant messages in the context of a session.

The aim is to provide a reference server side implementation of the SIP SIMPLE (SIP for Instant Messaging and Presence Leveraging Extensions) key component. The project contributes to the convergence of SIP (Session Initiation Protocol) and instant messaging.

The Open Source MSRP relay implementation will have the following features:

• Open source implementation licensed under LGPL;
• Code written in Python programming language;
• Integration with a popular open source SIP Proxy (OpenSER).

Plans for the future include the implementation of a multi-party Instant Message (IM) server and Open Source MSRP IM/File transfer client.