Section 4
SEC. 4. The grantee, its successors or assigns, shall not engage in domestic business of telecommunications in the Philippines, it being understood that the temporary permit granted under this Act merely secures the right of the grantee to establish, maintain and operate private fixed point-to-point radiotelephone stations at the places hereinabove stated for no other purpose than to promote, protect and subserve the trade and business interests of the grantee.