🚀 The open-source alternative to Twilio.
Open source voice AI platform. Self-hosted alternative to Vapi and Retell. On Prem, BYOK across Speech to Speech or LLM/STT/TTS, with a visual workflow builder, MCP native and telephony support.
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.
📱 [Android Library] Get device information in a super easy way.
E2E test framework for tests with complex environment requirements.
Rapida is an open-source, end-to-end voice AI orchestration platform for building real-time conversational voice agents with audio streaming, STT, TTS, VAD, multi-channel integration, agent state management, and observability.
MikoPBX — free open-source PBX for small business, built on Asterisk 22, PHP 8.4, and Phalcon 5. Deploy as ISO, Docker, LXC, or in the cloud.
The spend meter and budget gate for AI voice agents. Meters STT + TTS + LLM + telephony per call, out of the box (Pipecat, LiveKit — Python & TypeScript). Hard-stops the next turn before it crosses your ceiling. Local, no account, no telemetry. Built by Floe — cost controls for Voice AI.
📡 A curated list of awesome Real Time Communications resources
An open source Session Border Controller 🌟 The SBC you dream about 🗽 LibreSBC will help you save thousands of dollars.
End-to-end platform for building voice first multimodal agents
Add Vonage functionality such as SMS and voice calling to your Laravel app with this Laravel Service Provider.
T-one is a high-performance streaming ASR pipeline for Russian, specialized for the telephony domain.
Open Source Fax Server Software supporting inbound and outbound faxing. ICTFAX can be used in following faxing scenarios Web to fax, Fax to Web or Online Fax Email to fax and fax to email ATA / Extensions to send and receive faxes via Fax machine using internet REST based Fax API’s to integrate with third party applications and automate business…
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