Definitions
What I believe is important is definitions of what exists already. What is a domain suppose to be and where does the scam come into it
To call tel domains as a domain name defeats the whole idea of how DNS works.
Wikipedia / DNS
The Domain Name System (DNS) is a hierarchical naming system for computers, services, or any resource participating in the Internet.
Wikipedia / Scam
A confidence trick or confidence game (also known as a bunko, con, flim flam, gaffle, grift, hustle, scam, scheme, or swindle) is an attempt to defraud a person or group by gaining their confidence.