Skip to content
All Posts
Technical Guides

Technical Guides for AI Voice Agent Engineers

Deep technical guides for building, scaling, and operating AI voice agents — OpenAI Realtime API, Twilio, multi-agent architectures, observability, and reliability patterns.

9 of 20 articles

Technical Guides
16 min read1Apr 7, 2026

SIP Trunking for AI Voice Agents: Carrier Selection and Architecture

A technical guide to SIP trunking for AI voice agents — carrier comparison, codec selection, and high-availability patterns.

Technical Guides
19 min read1Apr 7, 2026

Building Voice Agents with the OpenAI Realtime API: Full Tutorial

Hands-on tutorial for building voice agents with the OpenAI Realtime API — WebSocket setup, PCM16 audio, server VAD, and function calling.

Technical Guides
15 min read2Apr 7, 2026

Integrating AI Voice Agents with Google Calendar: Production Guide

How to build production-grade Google Calendar integration for AI voice agents — OAuth, real-time availability, conflict resolution.

Technical Guides
15 min read0Apr 7, 2026

AI Voice Agent + HubSpot CRM Integration: Complete Developer Guide

Build a production integration between an AI voice agent and HubSpot CRM — contact sync, call logging, and deal creation.

Technical Guides
16 min read0Apr 7, 2026

AI Voice Agent + Salesforce Integration: Enterprise Developer Guide

A developer guide to integrating AI voice agents with Salesforce — lead push, call activity logging, and managed packages.

Technical Guides
15 min read0Apr 7, 2026

Webhook Patterns for AI Voice Agents: Idempotency, Retries, and Security

Production webhook patterns for AI voice agents — idempotency keys, retry strategies, signature verification, and observability.

Technical Guides
16 min read1Apr 7, 2026

How to Train an AI Voice Agent on Your Business: Prompts, RAG, and Fine-Tuning

A practical guide to training an AI voice agent on your specific business — system prompts, RAG over knowledge bases, and when to fine-tune.

Technical Guides
14 min read2Apr 7, 2026

Voice AI Latency: Why Sub-Second Response Time Matters (And How to Hit It)

A technical breakdown of voice AI latency budgets — STT, LLM, TTS, network — and how to hit sub-second end-to-end response times.