08/19/2026
Voice infrastructure has a strange failure mode: it works perfectly, right up until the moment it doesn't.
A toll-free number in Germany stops connecting. Calls to your Singapore contact center drop mid-conversation. A customer in Brazil hears silence instead of your IVR.
By the time you find out, the damage is already done; a customer has hung up, a deal has stalled, a ticket has gone unresolved.
Network monitoring wasn't built to catch this. It monitors infrastructure, not whether a specific number, in a specific country, actually connects for a real caller.
We put together a practical playbook on building a voice number testing program — frequency by number type, the metrics that matter, and the mistakes that quietly undermine most testing efforts.
Read it here: https://hubs.la/Q04tdkf40