FreeSBC

Open-source SIP Session Border Controller for self-hosted VoIP

Webfreeglobal

FreeSBC is an open-source SIP Session Border Controller written in pure Go, deployable as a single static binary with one YAML config file. It provides trunk B2BUA, edge proxying, RTP/SRTP relay, a WebRTC gateway, and built-in SIP security. It's built for VoIP and telecom infrastructure operators who want a simple, self-hosted SBC.

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Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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