Quality-Based PSTN Routing in OpenSIPS 3.1 LTS

Introduction Up until today, the open-source SIP server garden seems to have yielded quite a handful of ways to perform PSTN routing. Some VoIP operators prefer to pull the latest rate sheets and rebuild their LCR rules on a daily basis, then attempt the same (cost optimal!) list of gateways for each PSTN prefix throughout … Continue reading Quality-Based PSTN Routing in OpenSIPS 3.1 LTS

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