Assuming just the internet and SMS/MMS were disabled, most smaller companies would fall back to calling and faxing eachother. Esp. among wholesalers, faxing is

Assuming just the internet and SMS/MMS were disabled, most smaller companies would fall back to calling and faxing eachother. Esp. among wholesalers, faxing is still very popular. With regard to voice auths, I doubt the state would have their hotline go down, rarely do they use the public internet to backhaul calls. Most credit card processing is over IP. Chains like Kroger (and their 200+ subsidiaries), Walmart, etc would not be able to process cards. A small double digit segment of small businesses would fail over to processing over phone, but most Verifone and FD terminals have dial disabled.