Enthusiasts bond twelve 56K dial-up modems together to set dial-up broadband records — a dozen screeching boxes achieve record 668 kbps download speeds

https://www.tomshardware.com/networking/enthusiasts-bond-twelve-56k-dial-up-modems-together-to-set-dial-up-broadband-records-a-dozen-screeching-boxes-achieve-record-668-kbps-download-speeds