Settings
Platform configuration
Voice Pipeline
Speech-to-Text
Deepgram Nova-2
$0.0043 / min
Language Model
OpenAI GPT-4o
~$0.008 / min
Text-to-Speech
ElevenLabs Flash v2.5
$0.006 / min
Blended cost
~$0.018 / min · vs Retell ~$0.11Telephony
Provider
TwilioConcurrent calls
3Inbound webhook
/api/twilio/inbound-callMedia stream
wss://app.ambitnhouse.com/ws/callInfrastructure
Backend
Node.js + Express · port 3001Frontend
Next.js · port 3002Database
PostgreSQL 16 (Docker)Host
Hetzner · Madrid region