Achieving service redundancy in two steps with unified clustering in OpenSIPS 3.0

A hot backup means redundancy, redundancy means more uptime, more uptime means a better SLA, a better SLA means happier customers and more money. Building redundancy is a must when moving your service into production. And a typical approach for achieving redundancy is by implementing an active - backup setup with full realtime synchronization between … Continue reading Achieving service redundancy in two steps with unified clustering in OpenSIPS 3.0

Auto process scaling – a cure for load and resources concerns

During all the OpenSIPS trainings, one of the first questions that pops up when talking about configuring OpenSIPS is : "How do I know how many processes should I configure on my OpenSIPS?". And later, this question escalates into the one of the most troubling question for people operating OpenSIPS : "Does my OpenSIPS have … Continue reading Auto process scaling – a cure for load and resources concerns

Be part of OpenSIPS Summit 2019

There are approximately 4 months left to the OpenSIPS Summit 2019 in Amsterdam and we are full steam ahead with getting everything in place. One of the last milestone (before getting into straight line) was to open the registration process. So, we welcome everyone, participants, speakers and sponsors to join us and to be part … Continue reading Be part of OpenSIPS Summit 2019

Introducing OpenSIPS 3.0

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

SIP bridging over multiple interfaces

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

Handling SIP Redirect Requests in realtime

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

Clustering Presence Services with OpenSIPS 2.4

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

The new Clustering Engine of 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