99 production-grade tutorials covering ViciDial, Asterisk, AI voice agents, monitoring, security, and more. All free.
Build a complete VoIP monitoring stack in Docker: Grafana dashboards, Prometheus metrics, Loki logs, Homer SIP capture, and Smokeping latency graphs.
Score call audio quality automatically with a FastAPI service that combines the NISQA neural model, Silero VAD, and Claude for plain-English verdicts.
Build a real-time AI voice agent that answers Asterisk calls: AudioSocket streaming into Deepgram STT, a Groq LLM, and Cartesia TTS replies.
Detect repeat callers in real time and route them to the same agent with a Perl AGI script and MySQL lookups, no ViciDial core changes needed.
Replicate three MariaDB masters into one read-only reporting replica with per-source database renaming, so heavy queries never touch production.
Build a web panel to power on, reboot, and schedule a fleet of cloud VMs: PHP frontend, REST API backend, SQLite storage, and role-based access.
Build a complete WhatsApp monitoring platform using Evolution API, FastAPI, PostgreSQL, Claude AI, and Resend -- no official WhatsApp Business API required.
A production-grade Python exporter that bridges Asterisk AMI and ViciDial MySQL into Prometheus metrics for real-time VoIP monitoring.
Harden a production ViciDial server and tune MariaDB step by step: firewall, fail2ban, SSH, InnoDB sizing, and the settings that survive real load.
Monitor ring group calls in real time with a PHP log parser and MySQL, so you see missed after-hours calls before the customer complains.
Permanently remove leads, recycle phone numbers, and reset list state without data loss or orphaned records.
Turn repetitive VoIP ops work into 15 Claude Code slash commands: agent status, live calls, trunk health, call investigation, and DID lookup.
Run isolated country teams on one ViciDial server using separate campaigns, inbound groups, user groups, SIP peers, and ring group fallbacks.
Customize ViciDial inbound flow beyond the admin UI: caller blacklists, CLI filtering, ring-back delay, agent ranking, and recording security.
Speed up call-center VDI workstations with one PowerShell script that applies 37+ Windows optimizations and frees over 6 GB of disk per machine.
Build a Python system that scrapes 5 job boards daily, uses Claude AI to score each listing against your skills, and delivers a ranked HTML email digest -- completely hands-off.
Deploy preconfigured softphones to dozens of agent PCs at once with tSIP or MicroSIP, PowerShell, and a central config server.
Deploy node_exporter, promtail, heplify, and a custom Asterisk exporter to distributed VoIP servers from a central monitoring host via SSH.
Build a multi-tab PHP dashboard for VoIP ops: Homer SIP traces, ViciDial stats, call quality analysis, and server health in one place.
A systematic 7-step diagnostic procedure for Asterisk and ViciDial: from "calls are failing" to root cause without guessing.
Wrap Asterisk, ViciDial, and MySQL admin tasks into one shell CLI tool, so routine checks take one command instead of five terminals.
Protect ViciDial call recordings with Apache mod_rewrite rules and serve them through a PHP streaming backend with a dark HTML5 player.
Connect ElevenLabs conversational AI agents to real phone calls over SIP, with webhook tools and dynamic call context injection.
Batch transcription of ViciDial call recordings using Faster-Whisper (OpenAI Whisper optimized with CTranslate2) for speech-to-text at scale — on CPU, without cloud APIs.
A PHP AGI script that checks extension state before dialing, so ring groups skip busy phones and only idle extensions ring.
Replace MeetMe with ConfBridge on Asterisk: named conference rooms, admin controls, and real-time monitoring of who is in each room.
Connect a physical GSM gateway to your ViciDial call center for making and receiving calls over cellular networks — complete with NAT traversal, inbound/outbound routing, and production troubleshooting.
Design voice-agent personalities, conversation flows, and tool-calling workflows using patterns mined from real call transcriptions.
ElevenLabs cloud vs a local Deepgram, Groq and Cartesia stack for voice agents: architecture, latency, cost per call, and migration path.
The top 20 most-discussed ViciDial problems diagnosed and solved: dead air, DROP spikes, agents kicked, no dialable leads, and recording failures.
A step-by-step guide to building a distributed ViciDial call center across multiple servers: database master, web, and dialer roles explained.
Set up WebRTC and ViciPhone on ViciDial from scratch: certificates, ports, Asterisk config, and browser phones that actually register.
Upgrade ViciDial without killing your call center: pre-checks, database backups, SVN pinning, rollback plan, and post-upgrade verification.
Diagnose, tune, and scale the ViciDial database: slow query hunting, InnoDB sizing, index fixes, and archiving that keeps dialing fast.
Build an automated quality assurance pipeline that transcribes every inbound call using Faster-Whisper and scores agent performance with AI — running entirely on your existing ViciDial server with zero impact on live calls.
Lock down ViciDial and Asterisk against real attacks: firewall rules, fail2ban jails, SIP hardening, admin access control, and audit logging.
Build a production voice agent with OpenAI's native speech-to-speech Realtime API wired into Asterisk through AudioSocket.
Run Asterisk 21 fully containerized: Docker Compose with PJSIP, MariaDB, Redis, Nginx, Let's Encrypt, ARI, and WebRTC that survives restarts.
Build a live dashboard that transcribes active calls and shows per-call sentiment in real time, using faster-whisper and a lightweight web UI.
Build a self-hosted answering machine detection (AMD) system that replaces Asterisk's built-in `AMD()` application with a Whisper-based speech recognition + machine learning classifier pipeline. Traditional AMD relies on energy detection and cadence analysis, achieving only 60-70% accuracy in real-world conditions — misclassifying live humans as machines (killing revenue-generating calls) and letting voicemail greetings through to agents (wasting expensive seat time). This tutorial's AI approach transcribes the first 3-5 seconds of answered audio using OpenAI's Whisper model, then feeds the transcript and audio features into a trained ML classifier that distinguishes human pickups from answering machines with 95%+ accuracy. The entire system runs on your own hardware with no per-call API costs, processes decisions in under 2 seconds, and continuously improves as you feed it new labeled data from your call center's actual traffic.
A complete beginner-to-intermediate guide to FreeSWITCH: installation, SIP endpoints, XML dialplan, IVR menus, voicemail, and Event Socket integration. Learn installation, SIP endpoint configuration, XML dialplan, IVR menus, voicemail, recording, and integration patterns from scratch, with production-ready configurations throughout. Whether you are migrating from Asterisk or starting fresh, this tutorial gives you everything you need to deploy a fully functional FreeSWITCH system with SIP phones, trunks, call routing, conferencing, and external application control via the Event Socket Layer.
A complete beginner-to-intermediate guide to Kamailio: installation, SIP routing, authentication, NAT traversal, TLS, and load balancing as an SBC. Learn installation, SIP routing logic, user authentication, NAT traversal, TLS encryption, and load balancing from scratch, with production-ready configurations for use as a Session Border Controller (SBC) in front of Asterisk or FreeSWITCH. Whether you need to scale a single-server PBX to handle thousands of concurrent registrations, add a security layer in front of your media servers, or build a multi-tenant SIP platform, Kamailio is the tool that makes it possible.
Build a carrier-grade VoIP platform by combining Kamailio as a SIP proxy/load balancer with multiple FreeSWITCH media servers. This advanced tutorial covers dispatcher-based load balancing, RTPEngine for media relay, WebRTC gateway integration, database-driven routing, geographic failover, and full high availability with no single point of failure. This is the architecture used by every major VoIP provider handling millions of calls — and by the end of this tutorial, you will have a production-ready platform capable of 10,000+ concurrent calls with zero-downtime upgrades and geographic redundancy.
Transform an old laptop into a powerful self-hosted media server running Jellyfin, the *Arr suite, qBittorrent, AdGuard Home, Nextcloud, and 15+ services — all managed through Docker Compose with Intel QSV hardware transcoding, automated media management, and remote access via Tailscale.
Master ViciDial agent performance metrics, learn how to generate actionable reports, and understand the data structures that power contact center analytics
Learn how to configure and manage both agent-initiated and automatic callbacks in ViciDial with practical examples, database queries, and production troubleshooting techniques.
Master advanced lead recycling strategies, implement intelligent list management workflows, and optimize your ViciDial contact center performance with production-tested configurations and real-world examples.
Master the complete workflow for analyzing Asterisk Call Detail Records in production ViciDial environments—from database queries to real-time metrics and automated reporting.
Master building production-grade interactive voice response (IVR) systems in ViciDial using Asterisk dialplans, call routing, and real-time menu logic
Master multi-trunk redundancy, active-active load balancing, and failover logic to ensure zero-downtime calling in your ViciDial environment
Master ViciDial disposition codes, implement custom statuses, configure agent workflows, and troubleshoot disposition-related issues in production call center environments.
Master ring strategies to optimize call routing, reduce agent idle time, and improve contact center performance in ViciDial and Asterisk environments
A production-grade guide to configuring remote agents in ViciDial using WebRTC, VPN tunnels, and secure firewall rules for distributed call centers
Master complete backup automation for ViciDial production systems, including MariaDB databases, call recordings, configuration files, and verification workflows that run unattended on schedule.
Master the complete workflow for importing, maintaining, and enforcing Do Not Call lists in ViciDial to ensure compliance and protect your campaign reputation
Master codec selection and negotiation strategies for ViciDial deployments to optimize call quality, bandwidth, and server performance across different carrier and endpoint configurations.
Master ViciDial's REST API and webhook system to build click-to-call functionality and real-time CRM integrations for Asterisk-based contact centers
Learn how to deploy enterprise-grade monitoring for your Asterisk/ViciDial system using SNMP, Nagios, and Zabbix to track calls, channels, and system health in real-time.
Learn how to deploy Fail2ban with Asterisk to detect and automatically block SIP brute force attacks, credential stuffing, and registration floods in production ViciDial environments.
Master complex call routing, dynamic variable manipulation, and production-grade dialplan logic to build scalable ViciDial campaigns with custom extensions.conf patterns
Learn to configure production-grade voicemail in Asterisk with email notifications, custom greetings, transcription, and IVR routing for ViciDial environments.
Master the art of customizing your ViciDial agent screen interface, configuring dynamic CRM fields, and optimizing call center workflows for maximum productivity and data capture.
Learn to diagnose and resolve one-way audio issues in ViciDial and Asterisk environments, including codec mismatches, RTP problems, and ViciDial-specific configuration errors.
Master efficient recording storage architectures for ViciDial and Asterisk systems, comparing NFS block storage, S3 cloud solutions, and long-term archival strategies with production-tested configurations.
Master custom music on hold setup, per-queue MOH routing, and troubleshooting for high-volume ViciDial production systems
Master ViciDial's timezone routing capabilities to deliver calls to the right prospect at the right local time, increasing answer rates and compliance with do-not-call regulations.
Learn how to lock down your ViciDial admin panel with production-grade security: enforce HTTPS, restrict access by IP, implement two-factor authentication, and harden the database layer.
Learn how to diagnose and resolve "login incorrect" authentication failures in ViciDial for both agents and administrators, including database verification, configuration checks, and real-world debugging techniques.
Master the root causes of ViciDial's most frustrating connection error and implement proven solutions to keep your contact center running smoothly.
Master the art of troubleshooting "No Answer" call failures in ViciDial by reading carrier_log entries, analyzing Asterisk SIP traces, and identifying root causes in your telephony infrastructure
Master the root causes of dead calls in ViciDial, diagnose them using logs and database queries, and implement proven fixes to eliminate dead air and improve call quality.
Learn how to diagnose and fix the "Agent Not Available" error in ViciDial by understanding call routing logic, agent status codes, database configuration, and Asterisk integration issues.
Learn how to diagnose and fix missing call recordings in ViciDial by checking configuration, Asterisk settings, file permissions, and database logging
Master the root causes of no dialable leads errors and regain full campaign productivity through systematic list validation, hopper configuration, and database troubleshooting.
Learn how to diagnose, troubleshoot, and resolve MySQL connection errors in ViciDial production environments, including configuration validation, permission management, and failover strategies.
Master the complete diagnostic and resolution workflow for ViciDial agent screen failures, including server-side PHP debugging, database verification, browser compatibility checks, and production deployment fixes.
Learn to diagnose, fix, and prevent DROP status calls in ViciDial; understand the technical causes, check configurations, validate SIP/IAX2 connectivity, and implement compliance-safe solutions that maintain call quality and regulatory standards.
Learn how to diagnose and resolve the "Extension Does Not Match" registration error in ViciDial, including SIP endpoint configuration, database validation, and real-world fixes for agent phone registration failures.
Learn how to diagnose and fix lead hopper loading failures in ViciDial by checking database configurations, API endpoints, dial groups, and backend processes.
Learn how to diagnose, prevent, and resolve the "all circuits busy" error in production Asterisk/ViciDial systems by managing SIP channel limits, monitoring active sessions, and implementing proper resource constraints.
Master the diagnosis and resolution of SIP registration failures in Asterisk/ViciDial production environments by understanding peer registration mechanics, common misconfiguration patterns, and step-by-step troubleshooting methodology.
Master the complete diagnostic and resolution process for SIP 403 Forbidden errors affecting your ViciDial trunks and Asterisk SIP authentication
Learn how to diagnose and resolve SIP 503 errors in ViciDial and Asterisk production environments, with carrier-side and server-side remediation strategies
Master the complete diagnostic and resolution process for SIP 408 errors in ViciDial and Asterisk production environments, covering network analysis, firewall rules, SIP configuration tuning, and carrier-level debugging.
Learn how to capture, analyze, and fix segmentation faults in production Asterisk systems running ViciDial by examining core dumps, generating backtraces, and identifying memory corruption and module conflicts.
Learn how to diagnose and fix the AST_VDadapt process when ViciDial campaigns fail to initiate outbound calls, with real configuration examples, database queries, and step-by-step debugging commands.
Master the complete process of creating and configuring a new agent in ViciDial, from database entry through SIP registration and phone extension setup.
Master dial speed adjustments for ViciDial campaigns to optimize agent productivity, improve call connection rates, and reduce idle time in your production Asterisk environment.
Master the complete process of importing lead lists into ViciDial with proper CSV formatting, field mapping, and validation techniques to avoid common import failures in production environments.
Master ViciDial's three auto-dial modes with production-ready configurations, database tuning, and real-world troubleshooting for enterprise call centers
Master the art of building production-grade custom reports in ViciDial by writing optimized SQL queries against the asterisk database, complete with real examples, performance tuning, and troubleshooting strategies.
Master complete inbound DID routing configuration in ViciDial, from carrier integration through call distribution to agents, with production-ready examples and troubleshooting strategies.
Master Asterisk's built-in AMD engine and implement production-grade answering machine detection in ViciDial to increase agent productivity, reduce wasted call time, and improve contact rates on outbound campaigns.
Master production ViciDial database maintenance, call log archival, and system cleanup to optimize performance and prevent disk space exhaustion.
Master both agent-initiated and campaign-level scheduled callbacks in ViciDial, including database configuration, Asterisk dialplan setup, and production troubleshooting.
Master per-campaign Caller ID configuration in ViciDial/Asterisk to control outbound number presentation, dynamic CID routing, and compliance-driven number assignment across multiple campaigns.
Master the complete setup of ViciDial agent call scripts including database configuration, script creation, script-to-campaign linking, and agent-level script assignments for production call centers.
Master real-time call monitoring, agent performance tracking, and live campaign metrics in ViciDial to optimize your contact center operations and identify bottlenecks instantly.
Master the complete process of setting up closer campaigns and in-groups in ViciDial, from database configuration through agent assignment and real-time monitoring.