Zboun.

Zboun places real test calls through every vendor on a carrier's switch and captures the full evidence trail: a timestamped SIP ladder, post-dial delay, an audio recording of what the called party actually heard, a pcap, and an automatic fake-answer-supervision verdict. Traffic managers catch degraded routes, silent calls, and CLI refiling before their customers do. Multi-tenant with scheduled sweeps, alerts, and audit-ready reports for vendor disputes — integration is one whitelisted IP, never softswitch credentials. Built on Asterisk with a Laravel and React control plane; live in production with Nurlinks.