Some of the things they label "gun violence" aren't gun violence at all, like when a Police Officer shoots an armed robber. That's Justice not Violence.
We keep a land-line for emergency use (9-1-1, etc) and has a tertiary backup for our alarm system with uses cable modem and cell network to talk to central station. If those fail, it will try the POTS line dialer.
I have no idea why Arduino is so popular--it has NO debugging support unless you use an ICE. (People "debug" with printf statements.) We use Netduinos because with .NET we can single step and inspect variables in live code.
So I think someone is pulling our leg.