The ornamental design for a telephonesetbase, substantially as shown and described.
FIG. 1 is a front, top and side perspective view of a telephone set base
showing our new design;
FIG. 2 is a similar perspective view of a second embodiment thereof; and
FIG. 3 is a similar perspective view of a third embodiment thereof.
The surfaces of the undisclosed rear side and bottom side of all three
embodiments are flat and unadorned, and elevational views of the sides
opposite to those shown in the embodiments are mirror images of the
respective disclosed sides.