28 tutorials from production systems

Real Systems.
Real Code.
Zero Fluff.

Battle-tested tutorials extracted from live call centers, AI voice agents, and monitoring infrastructure across multiple data centers. Complete, copy-paste-ready code from systems handling thousands of calls per day.

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Why These Tutorials
Not another Medium article.
Every file comes from a working deployment. Every troubleshooting section documents a real incident. Every architecture decision explains why, not just how.
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Production-Extracted

Every config file, every script, every SQL query comes from systems running in production right now. Not toy examples.

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Copy-Paste Ready

Complete, working code blocks. Not fragments with "..." in the middle. Deploy in hours, not weeks of debugging.

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Incident-Driven

Troubleshooting sections document real outages, real debugging sessions, and the exact fixes that resolved them.

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All IPs, passwords, and API keys replaced with placeholders. Drop in your own credentials and go.

Tutorial Catalog
29 deep-dive guides.
Bundles
Save with themed bundles.
Grouped by domain so you get exactly what you need. Every bundle includes the master index with technology cross-references.
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VoIP Operations
Everything to run, secure, and troubleshoot a production ViciDial/Asterisk call center.
Includes: Repeat Caller Routing, Multi-Source Replication, Server Hardening, Ring Group Monitoring, Multi-Country Isolation, Advanced Inbound Flow, Troubleshooting Runbook, CLI Tools, Busy-Skip AGI, ConfBridge, GSM Gateway
$49
11 tutorials
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AI & Voice Agents
Build, deploy, and optimize AI phone agents that answer live calls through your PBX.
Includes: AI Audio Analysis, Voice Agent for Asterisk, ElevenLabs Cloud Agent, Call Transcription, Prompt Engineering, Stack Comparison & Booking Backend
$45
6 tutorials
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Monitoring & DevOps
Centralized observability for distributed VoIP infrastructure. From agents to dashboards.
Includes: VoIP Monitoring Stack, Custom Prometheus Exporter, Claude Code Skills, Monitoring Agent Deployment, PHP Dashboard
$35
5 tutorials
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Automation & Tools
Management panels, deployment automation, scrapers, and security tools.
Includes: Cloud VM Fleet Panel, WhatsApp Monitor, Windows VDI Optimization, Job Scraper + AI, Softphone Mass Deploy, Recording Security
$35
6 tutorials

Complete Collection

All 28 tutorials. One purchase. No subscriptions. No DRM.
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The first two sections of Tutorial #01 — Building a Complete VoIP Monitoring Stack with Docker.
01-voip-monitoring-stack.md
Intermediate ~88 min read

Introduction

If you run a VoIP operation — a call center, a telecom platform, or even a handful of Asterisk/FreePBX servers — you know the pain. A SIP trunk silently drops. Packet loss creeps up at 2 AM. An agent gets stuck in a zombie conference for three hours. Disk fills up with recordings and nobody notices until calls start failing.

The standard approach is to SSH into each server, run sip show peers, grep some logs, and hope you catch problems before your customers do. That does not scale past two servers.

This tutorial walks you through building a centralized VoIP monitoring stack that runs on a single Docker host and monitors any number of remote VoIP servers. It is based on a production system that monitors a multi-server ViciDial call center fleet across four data centers and seven SIP providers. Every configuration file in this tutorial comes from that real deployment, sanitized and annotated.

What problems does this solve?

  • SIP trunk monitoring: Know within 5 minutes when a trunk goes UNREACHABLE, before calls start failing
  • Call quality visibility: Track RTP packet loss, jitter, and codec transcoding across all servers in real time
  • Centralized log search: Search Asterisk logs, ViciDial dialer logs, and syslog from all servers in one place
  • SIP packet capture: Full SIP ladder diagrams (INVITE/200/BYE) for any call, stored and searchable for 7 days
  • Network latency baselines: Continuous latency measurement to every SIP provider, with historical graphs
  • Proactive alerting: 14 alert rules that catch trunk failures, zombie conferences, disk space, CPU spikes, and more
  • Agent state monitoring: See which agents are logged in, paused, stuck, or in call — across all servers

What You'll Build

When you finish this tutorial, you will have a single Docker Compose stack exposing these services:

ServicePortPurpose
Grafana:3000Unified dashboards — metrics, logs, SIP data, all in one UI
Prometheus:9090Time-series metrics database (30-day retention)
Loki:3100Log aggregation engine (7-day retention)
Homer:9080SIP capture and search (7-day retention)
Smokeping:8081Network latency graphs with historical baselines
Blackbox Exporter(internal)ICMP pings, TCP SIP port checks, HTTP probes
PostgreSQL(internal)Backend database for Homer SIP data

On each remote VoIP server, you will install four lightweight agents that ship data back to the central stack...

This is 2 of 23 sections. Get the full tutorial →

Pricing
One-time purchase. Yours forever.
No subscriptions. No DRM. No upsells. Plain markdown files you can read anywhere.
Product Contents Price
Individual Tutorial (Beginner) Single tutorial • 38–45 min read $9
Individual Tutorial (Intermediate) Single tutorial • 41–77 min read $12
Individual Tutorial (Advanced) Single tutorial • 49–88 min read $15
VoIP Operations Bundle 11 tutorials • call center ops & security $49
AI & Voice Agent Bundle 6 tutorials • audio analysis to production agents $45
Monitoring & DevOps Bundle 5 tutorials • observability end to end $35
Automation & Tools Bundle 6 tutorials • panels, scrapers, deployment $35
Complete Collection All 28 tutorials + future updates $99