A.用來指示被計(jì)費(fèi)的用戶在本地呼叫還是漫游呼叫B.可取值為0:本地C.可取值為1:省際漫游D.可取值為2:國(guó)際漫游
A.IMS-Charging-IdentifierB.List-Of-Calling-Party-AddressC.Service-Delivery-Start-Time-StampD.Service-Delivery-End-Time-Stamp
A.17user busyB.18no user respondingC.19no answer from the userD.20subscriber absent