When main using HLR is in trouble, the operating state of standby number segment in standby HLR is set into main using state.
当主用HLR出现故障时，把备用HLR中备用号码段的工作状态设置成主用状态。
When main using HLR is in trouble, the operating state of standby number segment in standby HLR is set into main using state.
当主用HLR出现故障时，把备用HLR中备用号码段的工作状态设置成主用状态。
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