Knowledge Hub

Practical guides and playbooks for WhatsApp automation, IVR, CRM, AI hiring, and performance marketing.

Showing 9 of 186 results
Deployment • 15 min
Learn how OpenSIPS enables distributed SIP routing, shared user databases, and large-scale inbound call handling when combined with Asterisk media servers.
2026-02-17 • opensips, asterisk, sip-router
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Troubleshooting • 12 min
Step-by-step troubleshooting for Asterisk AMI connection problems including authentication errors, bind address issues, and firewall blocking.
2026-02-17 • ami, asterisk, connection
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Telecom • 13 min
Understand the real protocols behind phone calls in Asterisk—SIP signaling, SDP negotiation, RTP media flow, and secure WebRTC layers.
2026-02-16 • asterisk, sip, rtp
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Deployment • 12 min
Step-by-step Let’s Encrypt SSL generation on Ubuntu plus automated renewal script and verification for long-term secure deployments.
2026-02-16 • ssl, lets-encrypt, certbot
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Troubleshooting • 14 min
Complete Wireshark troubleshooting workflow for VoIP—live SIP capture, RTP stream decoding, NAT detection, and one-way audio diagnosis.
2026-02-16 • wireshark, sip, rtp
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Troubleshooting • 11 min
Fix disk-full errors in FreePBX by locating log growth, call recordings, voicemail storage, and applying safe cleanup plus prevention steps.
2026-02-16 • freepbx, disk-space, logs
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Telecom • 12 min
A full production-ready firewall reference for FreePBX and Asterisk covering SIP, RTP, HTTPS, AMI, ARI, and WebRTC security exposure.
2026-02-15 • freepbx, asterisk, ports
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Deployment • 11 min
Production-safe NGINX reverse proxy configuration for telecom dashboards and FreePBX-style apps with HTTPS, headers, and WebSocket support.
2026-02-15 • nginx, reverse-proxy, https
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Networking • 10 min
Configure two Ethernet interfaces on one Linux server safely for telecom use—static IPs, routing priorities, and avoiding SIP/RTP instability.
2026-02-15 • ubuntu, debian, dual-nic
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