After having received some positive feedback on our presentation on the topic at hand at ClueCon '22, let's go through a more detailed run-down of all steps required, from a cryptographic point of view, in order to first become a fictive STIR/SHAKEN CA (Certification Authority), then to begin issuing signed certificates for various (also fictive) … Continue reading How To Generate Self-Signed STIR/SHAKEN Certificates
Category: Technical
The majority of SIP User Agents still only support the MESSAGE method for providing Instant Messaging. However, modern Unified Communications(UC) ecosystems and more advanced messaging services, such as RCS(Rich Communication Services), are built on top of Session Mode messaging, which uses the MSRP protocol. With the addition of the new msrp_gateway module, OpenSIPS 3.3 introduces … Continue reading MSRP Gateway
OpenSIPS has the Call Center module for a while, a module that allows queuing and dispatching (to agents) of RTP based calls (audio or video). OpenSIPS 3.3 focused on instant messaging, mainly session based messaging (or chat) in the context of IMS and Unified Communication (UC). And speaking of UC, the addition of chat (MSRP … Continue reading OpenSIPS Contact Center, or blending chats and calls
In the previous iteration, OpenSIPS 3.2 introduced a first version of the support for Diameter protocol peering by leveraging the freeDiameter project and its excellent C libraries. Building on top of this, OpenSIPS 3.3 now offers a way of building and sending arbitrary Diameter protocol requests, from the opensips.cfg script. This brief post will teach … Continue reading Using the Diameter Client Capability of OpenSIPS 3.3
Yes, the OpenSIPS 3.3 focuses on messaging and MSRP is a key element when talking about messaging/chat sessions. Packing messages into sessions enables the creation of advanced chatting / conferencing services in the RCS and UC world. The MSRP stack The MSRP implementation in OpenSIPS 3.3 comes as complex stack, covering from the lowest protocol … Continue reading The MSRP eco-system in OpenSIPS 3.3
Almost an year ago we were boiling the idea of starting a professional security audit over the freshly released OpenSIPS 3.2 . What were the reasons for doing this and how the audit actually took shape, as targets, methodology and deliverables, is described in this original manifest. Of course, nothing would have been possible without … Continue reading OpenSIPS Security Audit, facts and results
OpenSIPS 3.3 introduces a new module which offers full control over the configuration of individual TCP connections. From filtering by the employed TCP-based protocol (e.g. BIN, TLS, MSRP, SMPP, etc.), all the way down to specific combinations of remote and local IPv4 or IPv6 addresses, OpenSIPS platform developers now have the ability to cherry-pick and … Continue reading Fine-Grained TCP Configuration Using the “tcp_mgm” Module
Some time already past since we laid down the blueprints of version 3.3, the next major OpenSIPS release. Work was done, other work lays in front of us. So, where are we with this release and what is its timeline ? The OpenSIPS 3.3 is focusing on advanced Instant Messaging, in the ecosystem of IMS/RCS … Continue reading OpenSIPS 3.3 – interim update
We already know how many things you can do with OpenSIPS and what is its true value in providing services. But the value of a software is not to be see from the perspective of how good it is in doing its job, but also from the perspective of how manageable it is under operational … Continue reading Status, readiness and reports framework in OpenSIPS 3.3
SIP is more than voice and video, it is also instant messaging and presence. Even if the traditional SIP services are more voice focused, the Instant Messaging (IM) gained a lot if importance and traction in the context of IP Multimedia Subsystem (IMS) and Unified Communications (UC). Messaging in IMS Thanks to the large adoption … Continue reading OpenSIPS 3.3 – Messaging in the IMS and UC ecosystems
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