It's not the tech they care about, it's the network structure.

sure, but i as a user care about the tech, and what i am trying to say is that VOIP as tech for endusers is no longer interesting because we use video chat now.

	▲	inigyou 3 hours ago \| parent [-]
		Not on the PSTN you don't. The PSTN is a parallel internet whose main difference is that you need a verified identity to connect to it. It also simulates circuit switching and costs a lot.