SIP3 is an open-source VoIP and RTC traffic monitoring platform for real-time troubleshooting. Compare Community and Enterprise editions, features, and pricing.
SIP3 is a real-time monitoring and troubleshooting platform purpose-built for VoIP and RTC network traffic, aimed at support and network operations teams who need to quickly correlate and diagnose call quality issues at scale.
The project traces its roots to 2016, when founders Oleg Agafonov and Konstantin Mikhailov, both telecom engineers, evolved an earlier internal tool called TAPIR into a faster, more scalable platform now known as SIP3, after repeatedly seeing colleagues lose hours manually troubleshooting VoIP problems.
SIP3 is offered as both a free, self-hosted open-source Community Edition and a commercial Enterprise Edition with expanded protocol support, making it usable by hobbyist labs and small operators as well as continent-scale carriers; SIP3's first client was reportedly a continent-wide mobile carrier.
SIP3's four-module architecture separates concerns cleanly: Captain captures and encapsulates raw signaling traffic, Salto processes it through an event-driven pipeline, Twig serves as the API and aggregation engine for search, and Hoof provides the customizable web dashboard end users interact with.
The platform supports advanced search and real-time, end-to-end call correlation, which is designed to significantly cut the time support teams spend detecting and diagnosing customer-reported call issues across large volumes of signaling and media traffic.
Multiple dashboard types, including technical, business, and HostMap views, let different stakeholders (engineers versus business users) monitor the same underlying traffic data through views suited to their needs, while Docker and Ansible distribution options simplify deployment.
SIP3 Community Edition (SIP3 CE) is free and open source, giving organizations full access to the core capturing, processing, and dashboard components for self-hosted deployment.
The Enterprise Edition adds protocol support for SS7, CAP, and ISUP, plus beta features such as DPDK-based high-performance packet capturing, Media QoS metrics, and the HostMap dashboard; pricing for Enterprise is not publicly listed and requires contacting SIP3 directly.
Because SIP3 is self-hosted rather than a managed SaaS product, actual deployment cost also depends on the customer's own infrastructure for running the Captain, Salto, Twig, and Hoof components at their required traffic scale.
SIP3 is used for real-time monitoring, analysis, and troubleshooting of VoIP and RTC network traffic, particularly by service providers and support teams handling high call volumes.
SIP3 offers a free, open-source Community Edition (SIP3 CE) for self-hosted use. A paid Enterprise Edition with additional protocols and features is also available.
SIP3 was founded in 2016 by Oleg Agafonov and Konstantin Mikhailov, evolving from an earlier internal tool called TAPIR.
SIP3 natively supports SIP, ICMP, and RTCP/RTP. The Enterprise Edition adds SS7, CAP, and ISUP protocol support for telecom carriers.
SIP3 consists of four modules: Captain (capture agent), Salto (event-driven processing pipeline), Twig (API and aggregation engine), and Hoof (web interface).
SIP3 is designed for VoIP service providers, carriers, and organizations with high call traffic and large customer bases that need fast troubleshooting tools.
SIP3 can be deployed via Docker or Ansible for self-hosted installations, giving teams flexibility in how they scale the platform.
The Community Edition is free and open source with core monitoring features, while the Enterprise Edition adds SS7/CAP/ISUP protocol support and beta features like DPDK capturing and the HostMap dashboard.