[Users] OpenSIPS project

Bogdan-Andrei Iancu bogdan at voice-system.ro
Mon Aug 4 11:29:30 CEST 2008

Hello everybody,

A new project - OpenSIPs (Open SIP Server) - became active today, with 
its first release (OpenSIPS 1.4.0).

What is OpenSIPS about?

OpenSER History:
Voice System started the OpenSER project with a vision of running an 
open project that will deliver a professional software.  Along the years 
Voice System was the main contributor and sustainer of the OpenSER 
project, organizing conferences, events and tutorials, all aiming to 
consolidate OpenSER as a top solution for industry VoIP.

OpenSER Issues:

In the past time, several critical problems related to OpenSER project 
were identified by us:
- the need for a new reliable release - delayed or low-quality releases 
are affecting the credibility of the project
- degradation of the project quality - testing, performance measurements 
and code quality control are overlooked
- lack of the control, management and coordination of the project - 
critical project issues could not be handled or solved

OpenSIPS Solutions:

OpenSIPS is a continuation of the OpenSER project - we have a moral 
obligation to develop and deliver the high quality and reliable software 
we envisioned when starting OpenSER.

1) a 6 months release cycle, but with no compromise for the technical 
2) extensive testing and performance measurements before each major release
3) contributions are guaranteed to be answered and integrated (if 
accepted) in less than 1 month
4) code review, architecture control and integrated design for software 
5) technical management with a strict developer hierarchy and developer 
cooperation to prevent deadlocks or un-availabilities
6) intellectual honesty by having decisions taken on value-based 
criteria and arguments.

To find more about the project, see the official web page : 

OpenSIPS 1.4.0 release:

First major release of OpenSIPS is n**ow available. It incorporates new 
functionalities like

    * dialog profiling extension
    * local route for internally generated requests
    * dial plan / translation module
    * general NAT traversal module (for non-invite signalling)
    * peering and rate limit (traffic shaping) modules

, enhancements like:

    * SRV load balancing (based on weights)
    * nonce re-usage verification (safer authentication)

and bug fixing - code, specs and functionality bugs.

The full Changelog is available on the web site:

To get the OpenSIPS 1.4.0 version, see the download page at:

Best regards,

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