HOMER by SIPCAPTURE is a free, open-source SIP and VoIP packet capture and monitoring platform. See features, architecture, licensing, and support options.
HOMER is the flagship open-source project of SIPCAPTURE, a broader framework for capturing, monitoring, and analyzing VoIP and RTC signaling traffic. HOMER itself focuses on packet capture and monitoring, giving telecom operators a single application to write, read, coordinate, and query call data.
The project describes itself as providing telecom observability since 2011, though the underlying research and development by its maintainer, QXIP, dates back to 2009. It has grown into a carrier-grade platform used by voice network operators, ITSPs, trunk suppliers, and large enterprises worldwide.
HOMER is maintained by QXIP BV, a Dutch R&D company based in Amsterdam that also runs an operations center in Valencia, Spain, and offers professional services and commercial licensing for organizations needing paid support on top of the free open-source core.
HOMER processes signaling, RTC events, logs, and statistics based on the HEP/EEP protocol, offering instant search, end-to-end call-flow analysis, and packet-level drill-down for troubleshooting VoIP quality and connectivity issues.
The modern HOMER architecture is written in Go for x64 and ARM64 systems on Linux and macOS, and is powered by DuckDB with Apache Arrow and Parquet support, giving it an end-to-end columnar design optimized for on-demand query execution at scale.
The platform is organized into four modular components: Ingest (receives HEP packets over UDP, TCP, TLS, or HTTP), Storage (writes to DuckLake using Parquet files and a catalog), Node (an Airport gRPC/HTTP query server with optional FlightSQL), and Coordinator (a REST API gateway for the UI and external applications), and it remains backward compatible with all HEPv3 capture agents.
HOMER is free and fully open source under the AGPL-3.0 license, with no cost to download, self-host, or modify the software.
Organizations that need remote setup assistance, customization, professional support, or a commercial license outside the terms of AGPL-3.0 can contact QXIP, the Dutch company behind HOMER, for paid professional services.
Because HOMER is self-hosted, the primary real-world cost is the infrastructure required to run its Ingest, Storage, Node, and Coordinator components at the traffic volumes a given deployment needs to handle.
HOMER is a 100 percent open-source application for capturing, monitoring, and analyzing SIP, VoIP, and RTC network traffic, and is the flagship project of the SIPCAPTURE framework.
Yes. Homer is free and open source under the AGPL-3.0 license. Paid professional support and customization are available separately from QXIP.
Homer is maintained by QXIP BV, a Dutch research and development company headquartered in Amsterdam, Netherlands, with an operations center in Valencia, Spain.
Homer captures signaling, RTC events, logs, and statistics using the HEP/EEP protocol, and remains backward compatible with HEPv3 capture agents like heplify.
The modern version of Homer is written in Go for x64 and ARM64 systems, using DuckDB with Apache Arrow and Parquet for a columnar storage design.
Homer is used by ITSPs, VoIP providers, trunk suppliers, telecom vendors, voice network operators, and large enterprises, including Fortune 500 companies.
Homer is released under the AGPL-3.0 open-source license.
Homer and SIP3 are separate, independently maintained open-source VoIP monitoring projects. Homer is maintained by QXIP under the SIPCAPTURE umbrella, while SIP3 is a distinct platform founded by different developers with its own architecture.