试题详情
单项选择题对于一个正常的移动台主叫流程，下面的信令流程先后次序正确的是（）

A、OriginationMessage->CMServiceRequest->Allocation->Establish->AssignmentComplete->TchPreamble

B、OriginationMessage->CMServiceRequest->TchPreamble->Establish->AssignmentCompleteAllocation

C、OriginationMessage->CMServiceRequest->Establish->Allocation->TchPreamble->AssignmentComplete

D、OriginationMessage->CMServiceRequest->Establish->AssignmentComplete->Allocation->TchPreamble

  • 关注下方微信公众号，在线模考后查看

热门试题