通常企业每年都会推出新产品，来开拓市场让公司能在发展中稳步立足，企业在发展过程中也肯定会办理 一些固定使用的号码，消费者在有需求的时候，也会第一时间想起号码拨打咨询，但是如果企业在这个时候更换了号码，就会对消费者购买产品带来了一定的阻碍，但是企业如果办理了400电话就不会存在这个问题了，因为400电话是排列有序的十位数号码，方便消费者记忆，并且拨打的时候无论跨省都无需添加区号，这样消费者在产生购买欲的时候，会第一时间拨打电话咨询，促使成交不会对企业产生怀疑。
Usually every year, enterprises will launch new products to open up the market so that they can have a steady foothold in development. In the process of development, enterprises will certainly deal with some fixed numbers. Consumers will also think of the number dialing consultation for the first time when they need it. But if enterprises change the number at this time, There will be some obstacles for consumers to buy products, but enterprises will not have this problem if they deal with 400 telephones, because 400 telephones are orderly ten-digit numbers, convenient for consumers to remember, and dial without adding area numbers across provinces, so that consumers have the desire to buy. Wait, will call the first time to consult, promote the transaction will not have doubts about the enterprise.