Introduction Note: some information in this post may be outdated. Make sure to also read the follow-up post for the final view on qrouting's behavior. Up until today, the open-source SIP server garden seems to have yielded quite a handful of ways to perform PSTN routing. Some VoIP operators prefer to pull the latest rate … Continue reading Quality-based PSTN Routing in OpenSIPS 3.1 LTS [part 1]
Author: liviuchircu
Software developer for the OpenSIPS project. Has accrued over 9 years of experience in building and maintaining VoIP platforms, as well as staying up-to-date with related open-source technologies.
As you begin to write or migrate to OpenSIPS 3.x configuration files, you will notice some major changes in the way module functions are invoked. These changes are part of an ongoing effort to improve the experience of writing opensips.cfg code, and in this article we're going to take a closer look at how this … Continue reading The Module Function Interface Rework in OpenSIPS 3.0
OpenSIPS 3.0 includes major changes to the way in which the available memory allocators can be embedded into a build, as well as to the manner in which they can be selected at runtime. The end goal of this rework is to simplify and speed up many existing workflows (debugging, fine tuning, development) by avoiding … Continue reading Containing Memory-Related Issues in an Easy Way with OpenSIPS 3.0
Starting with version 3.0, OpenSIPS will offer script writers full support for piping the opensips.cfg file (including any other files imported by it) to a generic preprocessing command. What's So New About It? Until now, the core problem of templating opensips.cfg was solved using fully externalized solutions such as GNU m4, which grabbed an input configuration file … Continue reading Generic Preprocessor Support in OpenSIPS 3.0
The distributed SIP user location support is one of the major features of the latest stable OpenSIPS release, namely 2.4. The aim of this extension of the OpenSIPS usrloc module is to provide a horizontally scalable solution that is easy to set up and maintain, while remaining flexible enough to cope with varying needs of … Continue reading Clustered SIP User Location: The “Full Sharing” Topology
As time goes by, code, pull requests and patches for an open-source project will naturally keep arriving in a steady stream. Depending on the volume of these contributions, some projects end up doing just well with a single maintainer, while others require an entire team of maintainers, each specializing in one of the project's major … Continue reading A Better Way of Saying “Thank You!” to OpenSIPS Contributors
The "usrloc" module will benefit from a significant revamp in OpenSIPS 2.4. In this article, we're going to take a brief look at the newly-introduced usage dynamics of the module and how we can exploit them to the fullest. Clustering: Then By using a pre-2.4 version of OpenSIPS, you really did not have a straightforward way … Continue reading Scaling, Distributing and Partitioning Registrations with OpenSIPS 2.4
Happy New Year 2018! In this follow-up article, we're going to take a look at a major feature that Santa merged into the OpenSIPS development branch, just about a couple of days before Christmas: a series of advanced FreeSWITCH integration capabilities. It is now possible to fully control FreeSWITCH within the OpenSIPS script. This is … Continue reading How To Script Advanced FreeSWITCH Integrations with OpenSIPS 2.4
Whether you are a seasoned OpenSIPS administrator or you are still trying to figure out why your ACKs are looping all over your network, one thing is for certain: all of us will sooner or later need to have OpenSIPS produce some numbers which will answer questions such as: how many minutes has my OpenSIPS … Continue reading Deep Dive into the OpenSIPS Statistics Support
Intro Inside the OpenSIPS bubble, the notion of a "partition" was first introduced in OpenSIPS 2.1, roughly around March 2015. But what exactly are they and how do we use them? In short, they allow a single OpenSIPS module to be able to work with data from multiple database sources. In other words, in OpenSIPS terminology, a … Continue reading How To Use Database “Partitions” in OpenSIPS
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