Telephoner and Utterer

Telephoner noun - The person initiating a telephone call.

Utterer and telephoner are semantically related. In some cases you can use "Utterer" instead a noun "Telephoner".

Utterer noun - Someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous).

Telephoner and utterer are semantically related. Sometimes you can replace term "Telephoner" with "Utterer", this nouns are similar.