400 number is a special number is derived from the 800 national toll-free call answering party out of a need to pay. Early in the last century in Europe and America and other developed countries in order to enhance the external business development organizations, Henan 400 phone price, design a place in any country and any terminal can call the 800 number is turned on. China in the last century in the country began offering free nationwide 800 telephone number services; With the domestic telecom industry reform, Henan 400 telephone charges, was born five telecom operators, 400 calls, of which there are three fixed-line operators - Telecom, China Netcom , CRC. With the birth of the three operators each responsible for 400 number operations. 400 number length of 10 digits. Processing conditions 1) The applicant in the territory of People's Republic of China, and domestic use; 2) have regular access operators call facilities (including fixed telephone, mobile phone, PHS, etc.); 3) the company or individual conduct does not violate the People's Republic of China existing laws and regulations and local regulations; copies of business licenses to be prepared to open business information (1) and cover the company's official seal; (2) provide more than one phone number (3) ID card copy. The company is currently handling 400 calls only for the individual is not handled, it is also a symbol 400 telephone companies. (Part of the network is to provide individuals for 400 calls, so please pay attention to choose in the process of regular 400 call.) CBD400 phone application | Zhengzhou shark network (Online) | 400 telephone provided by the Network Technology Co., Ltd., Zhengzhou shark. Zhengzhou sharks Network Technology Co., Ltd. (www.shayuweb.com) is a leader in Zhengzhou, technical cooperation over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Sharks network leadership in Zhengzhou with the staff warmly welcome all inquiries negotiations to create the Zhengzhou shark network better future.