field guides

Build the bill, then build the call.

Long-form, source-linked guides for the decisions that calculators cannot make alone: cost boundaries, telephony architecture, media transport, and production safety.

guides

Two paths from estimate to production

Start with the cost guide when choosing a stack. Use the Asterisk guide when you need a provider-neutral telephony edge.

What Voice AI really costs

Build the complete minute from platform, STT, LLM, TTS, realtime audio, carrier, recording, concurrency, and operations.

Asterisk for Voice AI

Configure PJSIP, dialplan, ARI, RTP, NAT, external media, security, and production checks for real phone calls.