400 telephone features: independent management background every 400 users, has a separate management background 400 telephone inquiries, the user can log inquiry service usage and make the appropriate settings as needed. Independent management background, greatly increasing the user the freedom to use the 400 phone, allowing 400 calls better for business services. Advantages of the first 400 calls, 400 calls the most important thing is the ability for enterprises to establish a good image; second, the 400 telephone companies 400 calls, 400 calls are not busy, eliminating the need for service calls when busy busy before problems; Third, the calling / called pay-sharing manner, effectively prevent malicious call (800 number calling all free); Fourth, the role of self-management of 400 calls, convenient, low-cost, portable number for life, without changing the number. 400 calls free of it _ Zhengzhou shark Network (certification) _ Central district 400 calls 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.