FIG. 1 is a front elevational view of a telephone base showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a front, right side, and top perspective view thereof; and,

FIG. 8 is a front, right side, and top perspective view of the telephone base of FIG. 1, the broken line showing being for illustrative purposes only and forming no part of the claimed design.