Question

What kind of device converts signals from a campus's analog phone equipment into ip data that can travel over a phone company's analog telephone lines?

Answer 1

I’d go with an ATA (Analog Telephone)

ATA converts analog voice signals to digital signals, which can be transmitted over the internet. This device lets you connect a standard telephone to a network so that it can use VOIP to make calls through the user’s internet connection. Without this device, there will be no connection between the analogue telephone and a digital network.