FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a versatile software implementation that runs on any commodity hardware. From a Raspberry PI to a multi-core server, FreeSWITCH can unlock the telecommunications potential of any device.
- freeswitch
- signalwire
- open-source
- source-code
⚡ The future of programmable SIP servers.
- sip
- webrtc
- voip
- instant-messaging
Official FusionPBX - A full-featured domain based multi-tenant PBX and voice switch for FreeSwitch.
Self-hosted API-first AI call center: AI talks, code controls the call. AI agents answer every call; humans take over without dropping it. Runs on FreeSWITCH with your SIP trunk and realtime model (OpenAI, Grok, Qwen, Doubao, or any compatible gateway).
- call-center
- contact-center
- freeswitch
- golang
Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification.
:whale2: Minimal FreeSWITCH Docker images