Under the hood

How a Desha call works

Watch a single patient call travel end to end — from the scheduled reminder, through the telephony providers and the real-time voice pipeline, into the LangGraph conversation brain and RAG over Azure, and out across the event-driven notification fan-out.

Temporalcron schedulerOutbound CallerTemporal workflowsPatientphoneRedissession · prefetchTelephony Gatewaywebhook routerTelephonyTwilio · Telnyx · PlivoDeepgram STTspeech-to-textVoice PipelineSTT · TTS · barge-inTTSDeepgram · ElevenLabsService BuseventsConversation BrainLangGraph · GPT-4oNotification AgentFCM · WhatsAppRAG Agentpatient contextAzureAI Search · TablesHRS Agentweekly score
  • Patient / telephony
  • Real-time pipeline
  • Conversation brain
  • Background agents
  • Storage