Agent Voice Response
Open sourceTeams with existing Asterisk telephony
Asterisk-native; Self-hostable; Pluggable STT/LLM/TTS; Barge-in support
Emerging Open source vendors
10 Open source listings are in this group. Page 1 of 1: Agent Voice Response, Dograh, Fonoster, Jambonz, Kyutai, Pipecat.
These profiles stay at their own URLs and are left out of the sitemap until they meet the index rule. The full set of categories is on Emerging voice AI vendors.
Dograh
Open sourceTeams wanting OSS voice agents
Self-hosted; Workflow builder; BYO models; MCP
Fonoster
Open sourceDevelopers wanting an OSS Twilio alternative
Bidirectional streams; Autopilot agents; Self-hostable
Jambonz
Open sourceTelecom-savvy teams
Self-hosted; Any STT/TTS/LLM; SIP carriers
Kyutai
Open sourceResearchers and self-hosters
Open models; Full-duplex speech; Unmute cascade
Pipecat
Open sourceEngineers building custom agents
Pluggable STT/LLM/TTS; Pipecat Flows; Smart Turn
Rapida
Open sourcePlatforms embedding voice AI
BYO STT/TTS/LLM; Dashboard console; Self-host
Stream Vision Agents
Open sourceDevelopers building multimodal agents
Open-source Vision Agents; Edge network; Video + audio
TEN Framework
Open sourceDevelopers building realtime agents
RTC + WebSocket; VAD & turn detection; Extensions
Vocode
Open sourceEngineers who want to self-host
Python and Node SDKs; orchestration over any STT/LLM/TTS stack; phone call integrations
Buyers can request quotes without opening a thin profile. Vendors with a full indexed page are in the directory.