It occured to me while watching the Sega Mega Drive/Genesis demo Overdrive by the demo/art group TiTAN, while I was always amazed with the audiovisual work, this exact moment on the demo gets me thrilling every single time (timestamped embed):
This led to many attempts to create a large home phone system. I failed hard. However in the process of doing that, I learned how cursed SIP services are and even got a free Cisco IP Phone from an ISP contact.
SIP Trunking not working with...correct data?
SIP servers/gateways never completely follow the actual standards guiding the protocol.