OpenSIPS Contact Center, or blending chats and calls

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

Using the Diameter Client Capability of OpenSIPS 3.3

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

The MSRP eco-system in 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

OpenSIPS Security Audit, facts and results

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

Fine-Grained TCP Configuration Using the “tcp_mgm” Module

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

OpenSIPS Control Panel 9 – stepping into a new era

The OpenSIPS Control Panel accompanied OpenSIPS already for some time. And besides the sub-version aiming to align to the OpenSIPS versions (i.e. 8.3.1), the OpenSIPS Control Panel had its own evolution, reflected in the major version. For example, the last major boost was version 8, were the front-end part was re-design with a new modern … Continue reading OpenSIPS Control Panel 9 – stepping into a new era

Managing RCS Capabilities with OpenSIPS

At its core, RCS (Rich Communication Services) is a suite of specifications from OMA[1] and GSMA[2] aimed at replacing SMS messages with a richer messaging system equipped with added services such as group chat, message read receipts, file and file thumbnail transfers, download pausing and resuming, geo-location push, to name a few. But what extensions … Continue reading Managing RCS Capabilities with OpenSIPS