FIG. 1 is a perspective view of a portion of a portable radio telephone showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a side elevational view thereof from the side opposite that of FIG. 2;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken line showings of two buttons and of the display screen are shown superimposed on top of continuous, claimed surfaces and are employed for illustrative purposes. The broken line disclosure forms no part of the claimed design.