Summary:
Below is CallTower's guide to Telecom acronyums. The guide will provide a "Standard" description and then a "Description that makes sense." This will allow you to know how the acronyum is worded in the industry and worded as you explain it to your kid.
PSTN">PSTN
VOIP
SIP">SIP
VPN
SD-WAN
Telecommunications, the transmission of information over significant distances by electronic means.
Public Switched Telephone Network, the traditional circuit-switched telephone network used for voice communication.
Session Initiation Protocol, is the technology that starts, manages, and ends internet-based phone calls and video meetings between people and devices.