phoner vs verbalizer

phoner and verbalizer both are nouns.

Word	Noun	Adjective	Verb	Adverb
phoner	Yes	No	No	No
verbalizer	Yes	No	No	No

As nouns, verbalizer is a hypernym of phoner; that is, verbalizer is a word with a broader meaning than phoner:

phoner: the person initiating a telephone call
verbalizer: someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)

Other hypernyms of phoner include speaker, talker, utterer, verbaliser.

phoner (noun)	verbalizer (noun)
the person initiating a telephone call	someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)