You already know the story - one more year, one more evolution cycle, one more OpenSIPS major release. Even more, a new OpenSIPS direction is about to start. So let me introduce you to the upcoming OpenSIPS 3.0 . For the upcoming OpenSIPS 3.0 release (and 3.x family) the main focus is on the devops … Continue reading Introducing OpenSIPS 3.0
Category: Technical
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
There are scenarios where you need OpenSIPS to route SIP traffic across more than one IP interface. Such a typical scenario is where OpenSIPS is required to perform bridging. The bridging may be between different IP networks (like public versus private, IPv4 versus IPv6) or between different transport protocols for SIP (like UDP versus TCP … Continue reading SIP bridging over multiple interfaces
The SIP redirect mechanism is a simple and straight forward one - the originally contacted destination indicates, via a 3xx reply, that a different set of destinations should be contacted. The SIP redirect is mainly used for calls (for INVITE requests), even if the RFC3261 does not limit it to that. Usage cases The primary … Continue reading Handling SIP Redirect Requests in realtime
I guess everybody knows the drill by now - it is March, so it's time for a new major OpenSIPS release. Almost 4 months ago we were announcing our ambitious roadmap for OpenSIPS 2.4 . Well, this has just come reality !! I’m happy to announce the beta release of the OpenSIPS 2.4.0 major … Continue reading OpenSIPS 2.4.0 major release
OpenSIPS 2.4 is all about clustering and SIP presence is an important service that delivers a large variety of functionalities like end-to-end user presence, BLF, SLA and more. We need to consider clustering for presence as much as presence is a service with a large appetite for storage and processing - presence is mainly about … Continue reading Clustering Presence Services with OpenSIPS 2.4
Dialog replication in OpenSIPS has been around since version 1.10, when it became clear that sharing real-time data through a database is no longer feasible in a large VoIP platform. Further steps in this direction have been made in 2.2, with the advent of the clusterer module, which manages OpenSIPS instances and their inter-communication. But have we … Continue reading Clustering ongoing calls with OpenSIPS 2.4
The advantages of doing Load Balancing and High Availability without any particular requirements from the clients side are starting to make Anycast IPs more and more appealing in the VoIP world. But are you actually using the best out of it? This article describes how you can use OpenSIPS 2.4 to make the best use of … Continue reading Full Anycast support in OpenSIPS 2.4
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
Before even thinking of building clustering support for high level services like User Location, Dialog Tracking or SIP Presence, it is mandatory to have in place a powerful and flexible clustering engine. Such an engine will become the reliable foundation for approaching more complex clustering scenarios. And this is what we did in OpenSIPS 2.4 … Continue reading The new Clustering Engine of OpenSIPS 2.4
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