OpenSIPS (Open SIP Server) is a mature Open Source implementation of a SIP server. OpenSIPS includes application-level functionalities. With a very flexible and customizable routing engine, OpenSIPS 'unifies voice, video, IM and presence services in a highly efficient way, thanks to its scalable (modular) design.

 

http://www.opensips.org/

 

OpenXCAP is an Open Source, easy extensible, fully featured XCAP server with TLS security and support for multiple realms. XCAP protocol allows a client to read, write, and modify application configuration data stored in XML format on a server.

SIP Thor is a Peer-to-Peer overlay that allows for load balancing, self-organization and geographical distribution of SIP infrastructure elements. The Peer-to-Peer overlay provides Multimedia Service Platform with the primitives for self-organization, high availability and scalability.

MediaProxy is a media relay for RTP/RTCP and UDP streams that works in tandem with OpenSIPs to provide NAT traversal capability for media streams from SIP user agents located behind NAT.

CDRTool is an Open Source solution that provides mediation, accounting and tracing for Call Detail Records enerated by OpenSER by using RADIUS protocol and OpenSER siptrace facility.

SIP chatserver is an open source conference bridge that supports MSRP chat sessions and RTP audio streams. It can be used for add hoc conferencing by SIP end-points.

 

For more information visit the project web site at http://chatserver.ag-projects.com

Call Control is a prepaid application that can be used together with OpenSIPS and CDRTool rating engine to limit the duration of SIP sessions based on a prepaid balance.

 

For more information visit http://callcontrol.ag-projects.com