Agent callback button - Call Agent button refers to a feature of Internet-based call center, this function allows customers to visit a company's website, if he wants to communicate with the company personnel can press this button for online voice chat . Agent logon / logoff - Agent Sign In or Sign refers to a procedure to alert ACD system of the agent availability. Agent start work, they will login to the system to handle 400 calls, work will log off the system. Some systems 400 call center agents operate only one function key may realize login or logout, but some system will need to enter the code. 400 business known as the "unified national access code business" is the only access to a number of 10-digit phone agent 400, across the country without having to dial the area code to dial 400 telephone companies to install without adding hardware, software, equipment, only need the original 400 number and business entity telephone number (landline, mobile) binding, to answer the 400 call forwarding calls through the company's original landline and mobile phones. The only 400 number, easy to remember, has become the symbol of many enterprises, greatly enhance the corporate image, and more ring tones, intelligent voice navigation, audio, voice mail and other powerful features, a number of large enterprises to build virtual call center. 400 call center, abundance and Information Technology Center, Dandong Shenyang 400 calls provided by HSBC and Information Technology Center. Shenyang City HSBC and Information Technology Center (www.4000010001.com) (www.tz1288.com) is Shenyang, IT project co-leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. In abundance and IT central leadership with the staff warmly welcome all inquiries negotiations to create abundance and IT center a better future.