A.﹣80dBm B.﹣90dBm C.﹣95dBm D.﹣100dBm
A.掉話總次數(shù)/接通總次數(shù)×100% B.掉話總次數(shù)/試呼叫總次數(shù)×100% C.接通總次數(shù)/掉話總次數(shù)×100% D.試呼叫總次數(shù)/掉話總次數(shù)×100%
A.≤1‰ B.≤1.5‰ C.≤2‰ D.≤2.5‰