https://support.crowdhandler.com/support/solutions/articles/80001011464-is-crowdhandler-an-online-queue-system-or-a-virtual-waiting-room-
Online Queue System or Virtual Waiting Room? : CrowdHandler Virtual Waiting Room
These are both terms that refer to the same type of software. CrowdHandler does both. Waiting users are put in a queue to avoid overloading your website or app.
virtual waiting roomonline queuesystem
https://www.e-belarus.org/news/201412021.html
E-Belarus.ORG | Online queue in testing at Belarusian border checkpoint Kozlovichi
Online queue in testing at Belarusian border checkpoint Kozlovichi
online queue
https://www.qathome.com/
QatHome - Online Queue Management Made Easy
Controlla la coda online - Svuota la sala d'attesa.
online queuemanagementmadeeasy