long distance vs telephone call

long distance and telephone call both are nouns.

Word	Noun	Adjective	Verb	Adverb
long distance	Yes	No	No	No
telephone call	Yes	No	No	No

As nouns, telephone call is a hypernym of long distance; that is, telephone call is a word with a broader meaning than long distance:

Other hypernyms of long distance include call, phone call.

long distance (noun)	telephone call (noun)
a telephone call made outside the local calling area	a method of contacting a person by phone