HTTP/2 Server Support for Next-Generation Services in OpenSIPS 3.5

5G technology offers speeds up to 1000 times faster than 4G, as well as significantly lower latency and the ability to support large numbers of devices connecting to the network at the same time. With 5G deployments by telecom operators in both USA/Europe debuting as early as 2019[1] and continuing throughout the following years, it … Continue reading HTTP/2 Server Support for Next-Generation Services in OpenSIPS 3.5

Build an IMS using OpenSIPS 3.5 – S-CSCF (Part 1)

The main focus of the OpenSIPS 3.5 development plan is to facilitate and provide the tools required to build robust, production-ready, industry-grade IMS solutions. To this goal we have been working on new features and functionalities in OpenSIPS 3.5 that aim to simplify the IMS development process while still provide the required specifications. This post … Continue reading Build an IMS using OpenSIPS 3.5 – S-CSCF (Part 1)

Diameter Server Support for IMS Flows in OpenSIPS 3.5

IMS Network Architecture, source: researchgate.net Intro The OpenSIPS 3.5 release introduces support for OpenSIPS acting as a Diameter server, with the possibility of scripting generic Diameter Server interactions. This means that you will be able to add, tweak or remove the support for various Diameter requests by only re-deploying your opensips.cfg set of scripts (yes, … Continue reading Diameter Server Support for IMS Flows in OpenSIPS 3.5

LaunchDarkly integration with OpenSIPS 3.5

The realtime control, via flags or switches, is a critical aspect of any VoIP operation. The ability to manage the features in your system - like to toggle them on or off, to control their behavior - or the ability to manage the user's permissions (or capabilities), are all falling under the generic title of … Continue reading LaunchDarkly integration with OpenSIPS 3.5

IMS status in OpenSIPS 3.5

OpenSIPS 3.5 took the challenge of providing a complete support for IMS solutions. And here we are talking about industry grade IMS solutions, exceeding the basic lab grade. So, the target is to provide a robust IMS support to be used in real-life industry solutions. To achieve this goal, a quite extensive stage of exploring, understanding … Continue reading IMS status in OpenSIPS 3.5

OpenSIPS Summit 2024, Call for Location

The crown OpenSIPS event, the OpenSIPS Summit, started as being located in Amsterdam, until the pandemic moved us online. But once we were back with to the in-person events, we experimented a different approach, by picking different locations each year - like Athens 2022 and Houston 2023. This approach was a successful one, as both … Continue reading OpenSIPS Summit 2024, Call for Location

Thoughts after Our Participation in OpenSIPIt’03

September 2023 marked the 3rd edition of OpenSIPIt -- the online interoperability testing event for VoIP, SIP and related open-source technologies. This edition, the event featured a hackathon as well, where developers could either try to win some rewards (sponsored by Sippy Software) by completing a specific C/Python coding task or just spend the time … Continue reading Thoughts after Our Participation in OpenSIPIt’03