Gertrude: Your phone's ringing.
Roz: Oh, it's not mine, it's Frasier's. [looking at the phone] Ew! It's Julia.
Gertrude: Who's that?
Roz: This witch who's trying to get her hooks into Frasier. [shouting towards the phone] I hate her.
Gertrude: I'll fix her.
Roz: Wait, wait. What are you doing?
Gertrude: [waving Roz off, answering the phone in a refined, sultry voice] Hello. [pause] Oh, I'm sorry, Frasier's in no position to talk, if you, uh, get my meaning. Who's this, then? Hold on. [holding the phone out] Sweetheart? Do you want to talk to a Julia? [giggling] Oh, Frasier, put me down! [normal voice] Sorry, he's not here after all. Bye, now. [hangs up] There. Problem solved.
Roz: You know, you probably ruined their entire evening. [mimicking Gertrude's refined accent] How can I thank you?