9/17/2021, 11:15:07 AM
I didn't clue in immediately that it was due to the router (and firmware) change, and I was about to reach out to the support team but decided to check their FAQ2 as it was suggested I do so prior to starting the live chat session.
10(it was set to
After waiting a couple seconds for the SPA112 to attempt reregistration, I was back in business, dial tone and all!
Kudos to the VoIP.ms team for noting this on their wiki.
1 This is a referral code. Clicking on it and buying the product helps me maintain this site, but it's perfectly okay if you don't, either :)
2 I will state now that this is probably one of very few times when checking the FAQ actually led to a solution.