Complete Infrastructure Stack

Normalized for Mintlify from knowledge-base/aiconnected-apps-and-modules/modules/aiConnected-voice/complete-infra-stack.mdx.

Complete Infrastructure Stack

Component	Service	Purpose
Phone System	GoToConnect	PSTN, call control, WebRTC
Real-time Audio	LiveKit Cloud	Room management, audio routing
TTS	RunPod (Chatterbox)	Speech synthesis
STT	Deepgram	Speech-to-text transcription
LLM	Anthropic API (Claude)	Conversational AI brain
Platform Hosting	DigitalOcean/Dokploy	Web app, API gateway, agents
Database	PostgreSQL (on DO)	Tenants, configs, call logs
Cache/State	Redis (on DO)	Session state, call state machine
Automation	n8n (on DO)	Tool calling, CRM webhooks
Object Storage	DO Spaces or S3	Voice samples, recordings
Monitoring	Grafana/Prometheus or Datadog	Logs, metrics, alerts

Service

Est. Cost

GoToConnect

$17/user (grandfathered)

LiveKit Cloud

~$50-100 (low volume)

RunPod A5000

~$197

Deepgram

~$50-100 (low volume)

Anthropic API

~$100-300 (depends on usage)

DigitalOcean

~$50-100 (droplets + spaces)

Total

~$500-800/mo to start

Monthly Cost Estimate (Starting)