Tot public company limited () is a large State enterprises and telecommunications category is treated as national telephone business of the Thai joint venture about telephone and communication processing from the telephone Office of Thai, which was established in the current Government still have the status 2497 (1954) enterprises affiliated with the Ministry of information and technology in communications tot public company limited. There are several agencies that the agency I was operating agencies currently operating centers for devices and air conditioning khueang is acting maintenance equipment. The engine. No Te lamp and air in this projector via agency wants to change the air conditioning of the Cabinet meetings, a phone line, thus cooling the way our bodies are constitutionally required to be changed, because the air conditioner on our bodies, there are several lifetimes of 10 years, and each time maintenance is required more budget to repair.