🚀 The open-source alternative to Twilio.
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Updated
Sep 18, 2026 - TypeScript
🚀 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.
📡 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.
A complete voice AI building block with telephony integration, featuring real-time speech-to-text, text-to-speech, and LLM-powered conversational agents.
Open-source MCP server for safe, stateful AI-agent phone calls with OpenAI Realtime and Twilio.
T-one is a high-performance streaming ASR pipeline for Russian, specialized for the telephony domain.
To associate your repository with the telephony topic, visit your repo's landing page and select "manage topics."