About 5 minutes latter, the Moss Green shows up in another home - prop switch. But, after another 10 minutes, Tippi Hedren is seen talking on a WE Light Grey 500. The photo does not show the light gray color as well as seen on the TV screen.
The whole movie has a basic color scheme or palette of earthy pastels, green brown and gray. The light, neutral earth colors made it easy for Hitch to accent the important stuff in the dramatic scenes. The phones in those colors are just part of the background.