Will my video calls freeze?

A speed test downloads big files; a call sends tiny packets fifty times a second and can't wait for lost ones. This check sends real call-sized packets and tells you whether calls will break up, sound choppy or lag, and why.

Video-call check

Sends call-sized packets 50 times a second for 20 seconds through a Cloudflare call relay and back, the way Zoom, Teams, Meet and Discord send voice.

Calls only bad while others use the internet? That's a busy line: the Smart Queue assistant fixes it. Only in some rooms? Try the Wi-Fi room check.