I remember 30 years ago in the UK being envious of US telecom regulation. The US had free local calls - unheard of in the UK then and you could connect modems to the phone line. In the UK that was banned as the lines were all owned by the government monopoly and could not be touched so you had to put an acoustic coupler on the phone handset, believe it or not. Now the UK surprisingly seems to have better telecom regs than the US.
Are you sure the handset-suction-cup thing wasn't just the average technology 30 years ago? Because while I was too young to know about that, I distinctly remember seeing it in use here in USA at that time.
