Blink is a fully featured and easy to use SIP client. Blink offers Rich Multimedia Communications based on SIP protocol using Future Proof Addressing in the form of an E-mail Address. Easy Integration with existing SIP Service Providers. Open Source, you get the source code and you can contribute.

SIP SIMPLE client is a Software Development Kit for easy development of Real Time Applications based on SIP and related protocols for Presence, Audio, Instant Messaging (IM), File Transfers and Desktop Sharing. Other media types can be easily added by using an extensible high-level API.

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.

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 Thor is a Peer-to-Peer overlay that allows for load balancing, self-organization and geographical distribution of SIP infrastructure elements. SIP Thor allows for distribution of hardware resources in multiple datacenters and in different geographical locations. Using SIP Thor all relevant computing resources can be virtualized allowing for running the SIP services "in the cloud" with a high scalability/cost ratio. The infrastructure can scale deterministically to handle millions of end-points.

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

NGNPro is a SOAP/XML provisioning server that manages the addition, modification and deletion of entities like customer information, SIP domains, SIP accounts and SIP aliases on OpenSER, voicemail boxes on Asterisk, ENUM ranges and numbers, DNS zones and records on Power DNS server and rating plans on CDRTool rating engine.

ENUM is a protocol that provides a translation mechanism for E.164 telephone numbers into IP addressing schemes. Based on standards endorsed by IETF (Internet Engineering Task Force) and ITU (International Telecommunication Union), ENUM is the key ingredient of the convergence between PSTN and Internet.