dial phone vs telephone set

dial phone and telephone set both are nouns.

Word	Noun	Adjective	Verb	Adverb
dial phone	Yes	No	No	No
telephone set	Yes	No	No	No

As nouns, telephone set is a hypernym of dial phone; that is, telephone set is a word with a broader meaning than dial phone:

dial phone: a telephone with a dial for registering the number to be called
telephone set: electronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into sounds

Other hypernyms of dial phone include phone, telephone.

dial phone (noun)	telephone set (noun)
a telephone with a dial for registering the number to be called	electronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into sounds