knapptelefon

Etymology
, at least since 1973, probably a decade older; virtually obsolete around 2000, when dial telephones were no longer used; then revived again after the introduction in 2007 of the smartphone

Noun

 * 1) a push-button telephone, keypad telephone, a fixed-line telephone that does not have a rotary dial
 * 2) a featurephone, a mobile telephone (after the 2007 introduction of the iPhone) that is not a smartphone