#VOIP

VICIdial for Indian BPOs: Setup, Scaling, and Hardening

May 16, 2026

Vicidial Multi-Server Migration: BPO Case

How we migrated a single-server Vicidial deployment hitting capacity at 350 concurrent agents into a 5-node cluster handling 2,000 agents — without a service interruption window.

Apr 28, 2026

Toll-Fraud Prevention: 92% Reduction Case

A wholesale voice carrier was losing roughly $25k a month to toll fraud and routing abuse. We rebuilt the SBC tier on OpenSIPS HA, added behavioural rate-limits, and got fraud down 92%.

Apr 28, 2026

Vicidial Multi-Server Setup: 2026 Guide

A practitioner-grade walkthrough of the Vicidial multi-server cluster we deploy for clients running 500–5,000 agents — components, MySQL replication, trunk routing, security hardening, and the pitfalls we have debugged the hard way.

Apr 28, 2026

Critical Secure Remote IP Phones Using FreePBX and ZeroTier

Jan 4, 2026

Scaling OpenSIPS 3.6 to 10,000 Concurrent Calls - Technical Guide

Dec 29, 2025