OpenSER is a collaborative project of its users, to develop a scalable and robust SIP server.

Anyone can contribute to one of next items:

· code development - OpenSER core, modules and adjacent applications
· documentation- writing or enriching documentation
· miscellaneous - different management tasks (e.g., web site maintenance)
· ideas - new ideas bring brilliant solutions

Here are some key features of "OpenSER":

· robust and performant SIP (RFC3261) Registrar server, Location server, Proxy server and Redirect server
· stateless and transactional statefull SIP Proxy processing
· support for UDP/TCP/TLS transport layers
· scripting language for configurations file. With a syntax similar to sripting languages, the configuration offers a powerful and flexible way to deploy custom SIP services.
· management interface via FIFO file and unix sockets
· pseudo-variables to access and manage parts of the SIP messages and attributes specific to users and server
· authentication, authorization and accounting (AAA) via database (MySQL, Postgress, text files), RADIUS and DIAMETER
· CPL - Call Processing Language (RFC3880)
· NAT traversal support for SIP and RTP traffic
· ENUM support
· load balancing and least cost routing extensions
· support for replication - REGISTER offer new functions for replicating client information (real source and received socket).
· logging capabilities - can log custom messages including any header or pseudo-variable and parts of SIP message structure.
· modular architecture - plug-and-play module interface to extend the servers functionality

Whats New in This Release:

· This is the second patch release in 1.2.x series, including minor enhancements and bugfixes done since 1.2.1 was released.