400电话是企业维护客户的重要帮手。400电话作为企业专属的对外交流热线，在企业出现销售人员以及其他重要员工跳槽之后，通过400电话后台的查询，可以保留众多客户的不会因此而出现客户流失的现象。同时，公司对外电话统一为400电话，客户记住企业的400电话后，下次联系时便会直接拨打，所以不会导致顾客联系销售私人电话，导致企业客户流失。另外，由于400热线具有多线路同时通话的特点，基本不会出现占线和未接听的现象，从而使企业不会漏掉任何的重要电话，对于维护企业客户关系，提高成交率有着非常好的帮助。如今，企业都认识到维护老客户的重要性，那么维护老客户最好的途径便是400电话，当客户一有问题时便可以联系到企业，不会导致企业电话占线，联系不到企业，售后问题无法解决，那么降低了客户使用体验的后果便是损失一个客户，甚至是损失客户周边的潜在客户了。

400 telephone is an important helper for the enterprise to maintain the customer. 400, telephone as an exclusive foreign exchange hotline for enterprises, after selling salesmen and other important employees in enterprises, it can retain many customers' customers without losing customers through the inquiry of 400 phone backstage. At the same time, the company's external call is unified as the 400 phone. When customers remember the 400 phone number of the enterprise, they will dial directly next time they contact, so they will not cause customers to contact private phone sales, resulting in the loss of business customers. In addition, because the 400 hotline has the characteristics of multi line simultaneous calls, there will be no phenomenon of busy line and no answer, so that the enterprise will not miss any important phone calls. It will help to maintain customer relationship and improve turnover rate. Today, enterprises are aware of the importance of maintaining old customers, so the best way to maintain old customers is 400 phone, when customers have a problem can be linked to the business enterprise, will not lead to the line is busy, can not contact customer service to the enterprise, can not solve the problem, then reduce the customer experience is a consequence of loss a customer, or even the loss of customers around the potential customers.