oT public company limited has developed and improved network quality, modern and more efficient. In response to the satisfaction of the customer thoroughly equal and consistent with the current economic and social conditions by tot offer telecommunications services, turnkey. Both Dan sound, animation, and completeness, covering every sector of the entire customer base, customer groups, organizations, business groups, government agencies and the general public, where clients, in addition to a regular phone service provider, is the largest of the countries. Tot is also striving to become a leader in providing services to high speed. Multimedia services Mobile phone service at the age of 3 (3G) and ICT Solutions provider to customers, commercial organizations that tot accelerate expanding an Internet network high speed coverage throughout the country. With, realize that an Internet systems, high speed, it is the cornerstone of driving the country towards a learning society and to make the country Thailand can develop in a sustainable manner.