we have made an open source orchestration which enables you to plug in your own TTS/ASR/LLM for end-to-end voice conversations at -> https://github.com/bolna-ai/bolna.
We are also working on a complete open source stack for ASR+TTS+LLM and will be releasing it shortly.
We are also working on a complete open source stack for ASR+TTS+LLM and will be releasing it shortly.