OpenSIPS vs. Kamailio: Key Differences to Know for Your Next VoIP Project
OpenSIPS and Kamailio are two popular open-source SIP (Session Initiation Protocol) server projects that originated from the same codebase (SER – SIP Express Router). They’re widely used for handling VoIP calls, SIP routing, instant messaging, and other real-time communication services. Though they are similar in many ways, they have diverged over the years, each developing distinct features and communities. Here’s a comparison of key aspects:
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