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https://www.zoom.com/en/blog/acd-contact-center/

https://www.nice.com/glossary/what-is-contact-center-acd-automatic-call-distributor

https://www.ringcentral.com/contact-center/automatic-call-distribution.html

https://www.talkdesk.com/blog/what-is-an-acd/

https://www.five9.com/faq/what-is-an-acd

https://www.vonage.com/resources/articles/automatic-call-distribution/

https://en.wikipedia.org/wiki/Automatic_call_distributor

https://www.cebodtelecom.com/what-is-automatic-call-distribution-acd-complete-guide-to-acd

https://www.cmswire.com/contact-center/what-is-automatic-call-distribution-acd-a-complete-guide/

https://getvoip.com/library/automatic-call-distribution/