。
There's a phone call for you from someone called Kimura.
Literal
Kimura-san [called-という] person [from-から] you [to-に] [polite-お]phone-call is.
Standard office/household phrasing for relaying an incoming call. The honorific お on 電話 (お電話) is bikago — beautifying language that adds politeness to neutral nouns. The frame X からあなたにお電話です ('there is a phone call for you from X') is fixed and worth memorising. ~という人 again signals the speaker is announcing a possibly unfamiliar caller.