wake-up call vs telephone call

wake-up call and telephone call both are nouns.

Word	Noun	Adjective	Verb	Adverb
wake-up call	Yes	No	No	No
telephone call	Yes	No	No	No

As nouns, telephone call is a hypernym of wake-up call; that is, telephone call is a word with a broader meaning than wake-up call:

wake-up call: a telephone call that you request be made at a specific time in order to wake you up
telephone call: a method of contacting a person by phone

Other hypernyms of wake-up call include call, phone call.

wake-up call (noun)	telephone call (noun)
a telephone call that you request be made at a specific time in order to wake you up	a method of contacting a person by phone
a warning to take action concerning something that was overlooked or neglected