QQ is a business that can apply for a number that matches 400 or 800 hotlines, and when you apply you need to provide your company with a 400 or 800 hotline purchase contract, and then the agent will confirm if the number is your company, or if so, you can apply to Tencent.
企业QQ是可以申请与400或者800热线一致的号码的,申请的时候需要提供贵公司400或800热线购买合同,然后代理商会确认号码是不是贵公司的,要是是的话就可以向腾讯申请。[企业400电话的好处与作用