移动电话网提供的省际自动漫游，深受用户喜欢。有了它，就可以游遍神州大地。但是各省模拟移动电话网因工作频率不同有A、B系统之分。当手机持有者需要在外省进行通话时，首先要到邮电营业部门办理自动漫游登记手续，由营业人员填写申请工作单，并通知交换机房对该用户号码进 Inter-provincial automatic mobile phone network roaming, by the user like. With it, you can travel through the vast land of China. However, the provincial analog mobile phone network due to different operating frequencies have A, B system points. When the mobile phone holder needs to make a call in other provinces, he / she must go through the automatic roaming registration formalities with the post and telecommunications business department, fill in the application work order by the sales personnel, and notify the switch house to enter the user number