Rescue traces
Production VoIP rarely fails in the brochure diagram. It fails in media path, NAT, codec negotiation, trunk authentication and the quiet hours when fraud scanners start dialing. This hub collects rescue traces—one-way audio, dead trunks, FreeSWITCH/Asterisk incidents and the debugging loops that turn a pcap into a fix. Use it when you need carrier-grade troubleshooting, not a protocol textbook. Related engines: FreeSWITCH, Asterisk and WebRTC client paths. When the incident is over, the same notes feed durable architecture for owned PBX and CCaaS platforms.
34 articles in this topic · page 2 of 3
Also explore: FreeSWITCH · Asterisk · WebRTC · Services
In telecom software, the hardest problems rarely come from the “main feature” itself. They come from the interaction between call flow logic, user state, audio playback,…
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"Our SIP trunk is online." "OPTIONS are responding." "Everything looks healthy." And then, within a few hours... Hundreds of unauthorized international calls. Potential losses…
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"Our SIP trunk is online." "OPTIONS are responding." "Everything looks healthy." And then, within a few hours... Hundreds of unauthorized international calls. Potential losses…
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From Bare Server to Secure, Scalable, Customer-Ready Voice Infrastructure Many businesses need more than “just a phone system.” They need a communications platform that can…
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The traditional IPPBX appliance had its moment: a dedicated box, preconfigured telephony stack, and vendor-locked features. But in 2026, that model is increasingly…
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In every service business, the first interaction defines the outcome. A missed call is not just a missed inquiry, it is a lost patient, a lost booking, or a lost order. An AI…
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In the last few months, I’ve been working closely with businesses building AI-powered phone systems — virtual receptionists, outbound AI callers, and smart contact center…
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A few weeks ago, I noticed something unusual. When someone searched "Troubleshooting BSNL SIP Trunk with Asterisk PJSIP & ARI" on Google, my technical write-up wasn't just…
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As telecom platforms evolve toward cloud-native infrastructure , the traditional PBX model is no longer sufficient to support large-scale, multi-tenant VoIP services. Businesses…
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🚀 How We Secured ARI, AMI, Prometheus & Exporters in a Live PBX Environment Modern telecom SaaS platforms are not just about call routing and dialplans. They are distributed…
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A practical, production-ready guide to configuring BSNL SIP PRI (IMS SIP Trunk) on modern Asterisk (PJSIP) with OpenVPN. Covers authentication, routing, user_eq_phone, scoring…
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The Hidden Asterisk + PJSIP + IMS Trap (BSNL Case Study) Why a perfectly registered SIP trunk can still make ZERO calls — and how to fix it Most SIP engineers panic when they see…
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