The TOT installation will need new wiring in the building and branching into each floor and each unit (who subscribes). The wiring in the building done by TOT will be exteria and may be visible in each floor lift lobby, and in your residence. I do not think it is in TOT interests to ensure our building wiring neatness and pleasant sight.
I would like to suggest that we hire worker to installation into the ceiling and hidden from sight for both common area and in each unit krub?