【名词&注释】
掉话率(dropping rate)、切换成功率
[单选题]CS语音环回功能对应的toolkit任务类型是哪个?()
A. RNLU_UE_DATA_TEST B. RNLU_UE SIGNAL BY UEID C. RNLC_IU COMON SIGNAL D. RNLC_UE SIGNAL BY UEID