telephony vs dial

telephony and dial both are nouns.

Word	Noun	Adjective	Verb	Adverb
telephony	Yes	No	No	No
dial	Yes	No	Yes	No

telephony (noun)	dial (noun)
transmitting speech at a distance	the face of a timepiece; graduated to show the hours
	a disc on a telephone that is rotated a fixed distance for each number called
	the circular graduated indicator on various measuring instruments
	the control on a radio or television set that is used for tuning

telephony (verb)	dial (verb)
	choose by means of a dial
	operate a dial to select a telephone number