The ornamental design for a telephonehandset, as shown and described.
FIG. 1 is a top, side and microphone end perspective view of a telephone
handset according to the present invention;
FIG. 2 is a side elevational view thereof with the earphone and microphone
ends of the handset being illustrated at the left and right hand sides
thereof;
FIG. 3 is a bottom plan view of the handset thereof;
FIG. 4 is an end elevational view of the earpiece end of the handset; and,
FIG. 5 is an end elevational view of the opposite end of the telephone
handset.