First Czechoslovak radiotelephone networks: AMR

Also I've never met anyone who thpught that. On the other hand there is the folk etymology of TeSla = "technicky slabsi" = "technologically inferior", which has some grain of truth as for political reasons the Tesla conglomerate tried to disassociate itself from Nikola Tesla by explaining the name as abbreviation of either "technika slaboprouda" (phrase that essentially means "electronics", litetally "low voltage technology") or "telefon slaboproud" (~ phone and electronics).

My try at explanations of terms I've found weird or unclear: UTO - Uzlovy Telefonni Obvod ~ Area code "Selective selector" - direct/selective calling in two way radio systems, but in this case it more or less implies what is known trunked radio stalk - trunk, although IIRC Motorola uses the term stalk for "sub-trunk" or something like that.

In all AMR is essentially analog trunked radio system with the role of operator/dispatcher completely automated and without the ability of direct or repeater calls between nearby stations.