Season 4, Episode 17: "The Outing"

Leave me alone. Get off my back about the jacket.

-Oh, look at this. A phone. -Yeah.

A two-line phone.

That's terrific! Thanks a lot.

Now when someone's on the phone, I can make a call.

-Yeah. -Look, Elaine, a two-line phone.

Yeah, I see it.

I'm gonna get one myself.