With whom does Tom talk on the telephone early in the chapter? About what?

Tom talks with George Wilson in the beginning of the chapter about selling George a car he's been after. Tom refuses.

“The rumor is,” whispered Jordan, “that that’s Tom’s girl on the telephone.”
We were silent. The voice in the hall rose high with annoyance: “Very well, then, I won’t sell you the car at all. . . . I’m under no obligations to you at all . . . and as for your bothering me about it at lunch time, I won’t stand that at all!”
“Holding down the receiver,” said Daisy cynically.
“No, he’s not,” I assured her. “It’s a bona-fide deal. I happen to know about it.”