I’m trying to get info from a supplier and they are insistent that a trunk is a 1 to 1 with a call. Now I am 99.999% sure he's wrong, but before I tell him so I wanted to make sure someone who knows ...

We have Spectrum internet service and for some reason in our area we need to use their modem and router if we want a static IP. I did some research and his is a common problem in some areas. Our setup ...