400电话办理，主要有运营商和服务商两种渠道。由于运营商成本高，资源少，时间长，服务商已经成为企业的主要办理方式。
400 telephone handling mainly includes two channels: operators and service providers. Due to the high cost, few resources and long time of operators, service providers have become the main handling mode of enterprises.
在服务商办理，企业只需要预存话费就可以申请开通，号码免费选择，也无需月租和开户费，而且服务商号码资源丰富，功能齐全，更容易满足企业需求。
When handled by the service provider, the enterprise can apply for opening only by pre depositing the call fee. The number is free to choose, and there is no need for monthly rent and account opening fee. Moreover, the service provider number has rich resources and complete functions, which is easier to meet the needs of the enterprise.
400电话是针对企事业单位办理的，企业在申请的时候，需要提交营业执照，法人身份证等资质，还需要填写400电话受理单，因此，个人是无法申请开通的。
400 telephone is handled for enterprises and institutions. When applying, enterprises need to submit business license, legal person id card and other qualifications, and also need to fill in the 400 telephone acceptance form. Therefore, individuals cannot apply for opening.
需要注意的是，企业在选择服务商的时候，一定要选择正规可靠，资源丰富的，要检查营业执照等资质，确保安全，防止被骗。
It should be noted that when choosing service providers, enterprises must choose regular, reliable and resource rich ones, and check their business license and other qualifications to ensure safety and prevent being cheated.