Ava
AI phone agent for businesses — calls, follow-ups, CRM sync
TypeScript · Effect 
Twilio 
MongoDB Ava answers and makes business calls, runs the follow-up workflows afterwards, and keeps the CRM and calendar in sync — so conversations become records instead of sticky notes. It includes a web dashboard and an embeddable customer-facing widget.
It’s a Q9 Labs product, in production with live infrastructure: Ultravox for voice, Twilio and Telnyx for telephony, HubSpot and Google Calendar integrations, all on an Effect-based TypeScript backend.