We claim the ornamental design for a telephone, as shown and described.
FIG. 1 is the front perspective view of a telephone showing our new design;
FIG. 2 is the front view thereof;
FIG. 3 is the rear view thereof;
FIG. 4 is the left-side view thereof;
FIG. 5 is the right-side view thereof;
FIG. 6 is the top plan view thereof;
FIG. 7 is the bottom plan view thereof; and,
FIG. 8 is another front perspective view thereof, shown with environmental subject matter.
The broken lines in FIG. 8 showing a cord depict environmental subject matter and form no part of the claimed design, while all other broken lines depict portions of the telephone that form no part of the claimed design. The unshaded surfaces shown between solid lines and broken lines form no part of the claim.