电话号码查询是一种基本电信业务,不但可服务于用户,甚至可成为一项赢利的业务。电话号码查询按查询方式可分为非在线号码查询(包括白页和黄页)及在线号码查询。目前一些国家和地区的号码查询业务随着更多运营商的加入而变得复杂,因此,管制机构开始重新修订规则,出台了一系列的规定和规范,以便提高号码查询业务的服务质量。 Telephone number lookup is a basic telecommunications service that can serve users and can even become a profitable business. Telephone number inquiry By inquiry method can be divided into non-online number inquiry (including white pages and yellow pages) and online number inquiry. At present, the number inquiry service in some countries and regions has become complicated as more operators join. Therefore, the regulatory agencies started to revisit the rules and promulgated a series of rules and regulations in order to improve the service quality of the number inquiry service.