FIG. 1 is a front perspective view of a telephone handset showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof, the right side view being a mirror image thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a front perspective view of a telephone handset showing another embodiment of our new design;

FIG. 8 is a front view thereof;

FIG. 9 is a left side view thereof, the right side view being a mirror image thereof;

FIG. 10 is a top view thereof;

FIG. 11 is a back view thereof; and,

FIG. 12 is a bottom view thereof.

The contours shown in broken lines are for the purposes of illustration, but do not form part of the claimed design.