400電話是一個虛擬號碼，辦理開通是沒有任何實體設備的，會有一個管理平臺，企業可以登錄后臺對功能和號碼進行設置，從而開始使用，簡單來說，400電話是一個虛擬總機，通過綁定手機或固話來實現接聽，可以支持很多電話一起撥打，具有不占線的優勢。
The 400 phone is a virtual number. There is no physical equipment for opening. There will be a management platform. Enterprises can log in to the background to set functions and numbers, so as to start using. In short, the 400 phone is a virtual switchboard, which can be answered by binding mobile phones or fixed phones. It can support many phones to dial together, which has the advantage of not busy.
另外，400電話雖然也是作為客服使用，但它只能用來接聽，不能外呼，即便開通呼叫中心業務，外呼也是不能顯示400號碼的，這個企業在辦理時需要注意下。400電話只能是企事業單位辦理，個人是不能申請開通的，辦理時需要營業執照等。
In addition, although the 400 phone is also used as a customer service, it can only be used to answer and cannot be used for outbound calls. Even if the call center business is opened, the outbound call cannot display the 400 number. This enterprise needs to pay attention when handling. 400 telephone can only be handled by enterprises and institutions, and individuals cannot apply for opening. They need a business license when handling it.
400電話最具吸引力的地方在于其具備很多功能，不同的功能對企業發展有著不同的影響，企業在辦理時，可以多加了解，選擇適合自己的功能，助力企業更好的發展。
The most attractive thing about the 400 telephone is that it has many functions. Different functions have different effects on the development of the enterprise. When handling, enterprises can learn more and choose their own functions to help the enterprise develop better.
