This patent application is cross referenced to the following design patent appications, “Ornamental Design For A Security Network Handset Shape,” and “Ornamental Design For Security Network Handset Controls,” each of which were filed concurrently with the present application by the inventors of the present application. All of the foregoing cross-referenced patent applications are incorporated by reference into this patent application.

FIG. 1 is a perspective view of the ornamental design for the security network handset;

FIG. 2 is a front view of the ornamental design for the security network handset;

FIG. 3 is a rear view of the ornamental design for the security network handset;

FIG. 4 is a left side view of the ornamental design for the security network handset;

FIG. 5 is a right side view of the ornamental design for the security network handset;

FIG. 6 is a top view of the ornamental design for the security network handset; and,

FIG. 7 is a bottom view of the ornamental design for the security network handset.