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
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
Time is flying when you're having good time. Last week we celebrated 10 year of fun under the name of OpenSIPS. Nevertheless we count almost 17 years of fun under the SER, OpenSER and OpenSIPS names together. During these years we've built a long-lasting relation with the VoIP community and industry - this relation helped … Continue reading 10 years of OpenSIPS and more
The first OpenSIPS Bootcamp was held in Miami, 10 years ago and the first OpenSIPS Certified Professional was Alex Goulis who took the test in this same training. Since then, many things changed. In this post we are going to cover what is the Bootcamp and why you should also participate of the next edition … Continue reading 10 years of the OpenSIPS Bootcamp
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
